how do i get the answer to this question? please see example problem and correct answer

Suppose you take out a 20-year mortgage for a house that costs $355,974. Assume the following: - The annual interest rate on the mortgage is 3%. - The bank requires a minimum down payment of 18% at the time of the loan. - The annual property tax is 2.4% of the cost of the house. - The annual homeowner's insurance is 0.9% of the cost of the house. - The monthly PMI is $95 - Your other long-term debts require payments of $630 per month. If you make the minimum down payment, what is the minimum gross monthly salary you must earn in order to satisfy the 28% rule and the 36% rule simultaneously? Round your answer to the nearest dollar. Suppose you take out a 20-year mortgage for a house that costs $282,183. Assume the following: - The annual interest rate on the mortgage is 4%. - The bank requires a minimum down payment of 11% at the time of the loan. - The annual property tax is 2.4% of the cost of the house. - The annual homeowner's insurance is 0.9% of the cost of the house. - The monthly PMI is $70 - Your other long-term debts require payments of $971 per month. If you make the minimum down payment, what is the minimum gross monthly salary you must earn in order to satisfy the 28% rule and the 36% rule simultaneously? Round your answer to the nearest dollar