Help quick pls

You believe you have discovered a new medical device. You anticipate if will take additional time to get the device fully opetational. run clinical trials, obtain FD approval, and sell to a buyer for $570,000. Assume a dispount rate of 5% compounded annually. What is the value today of discovering the medical device, assuming you sell it for $570,000 in (a) two years, (b) three years, or (c) four years? (EV of \$1. PV of \$1. EVA of \$1, and PYA of \$1) (Use tables, Excel, or a financial calculotor. Round your onswers to 2 decimal pleces.)