Maurice borrowed $6000 from Heidi on April 23 and agreed to make payments of $2000 on June

Question:

Maurice borrowed $6000 from Heidi on April 23 and agreed to make payments of $2000 on June 1 and $2000 on August 1, and to pay the balance on October 1. If simple interest at the rate of 10% was charged on the loan, what is the amount of the third payment? Use April 23 as the focal date.