You are considering an investment that requires an upfront payment of $6,500. In return it pays $1,800 at the end of the first year, $2,200 at the end of the third year, plus an undisclosed amount after five years. If the appropriate rate of return for such an investment is five percent, calculate what the undisclosed amount should be at the end of year five to make this investment worthwhile. The undisclosed amount should be s to make this investment worthwhile. (Round the final answer to cent as needed. Keep all decimal places as you work through the problem.)