Payment of $989 due 2 months ago and $463 due today are to be repaid by a payment of $400 one month from today and the balance in 9 months from now. If money is worth 6% compounded monthly, and the agreed focal date is 9 months from today. What is the size of the final payment?

Please express your answer to the nearest dollar. Sample input: 2456 for $2456.