John Keene recently invested $2,250 in a project that is promising to return 10 percent per year. The cash flows are expected to be as follows: Year End of Year Cash Flow $579 $589 $506 $?? $577 Note that the cash flow in year 4 is missing. Determine the Year 4 missing cash flow that will make the present value of this series equal to the amount John invested (that is, CFO = -2250)? Round your answer to 2 decimal places and record your answer without a dollar sign and without commas