please help me with this. thank you!

Sean deposits $821 in a savings account that earns interest at Increasing Rates Bank. For the first three years the money is on deposit, the annual effective interest rate is 2%. For the next two years the annual effective interest rate is 3%, and for the following five years the annual effective interest rate is 4%. What is Sean's balance at the end of ten years? (Round your answer to the nearest cent.) $ 3805.05 x