A fund of $2000 is to be accumulated by n annual payments of $50 followed by n annual payments of $100 plus a smaller final payment made one year after the last regular payment. Assume that payments occur at the beginning of the year. If the rate of interest is 4.5% effective annually, find n and the amount of the final payment. n: final payment: A fund of $2000 is to be accumulated by n annual payments of $50 followed by n annual payments of $100 plus a smaller final payment made one year after the last regular payment. Assume that payments occur at the beginning of the year. If the rate of interest is 4.5% effective annually, find n and the amount of the final payment. n: final payment