What TVM formula was used to answer the question? Sinking Fund Deposit, Capital Recovery, Fundemental Capitalization Formula, Single Payment Compound Amount, Single Payment Present Value, Uniform Series Present Value, or Uniform Series Compound Amount?

Thank you.

You have set a financial goal of having $3,500,000 saved by retirement. If you plan to work for the next 40 years, how much would you need to save at the end of each year if you expect an average annual return of 9% in your retirement fund? Round your answer to the nearest dollar