the answers i got are stating that i am wrong and im not seeing how . please help me find the correct answer to this question

Pierce Co. has identified an investment project with the following cash flows. Cash Flow Year 1 $ 570 840 1,280 1,400 a. If the discount rate is 10 percent, what is the present value of these cash flows? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) b. What is the present value at 18 percent? (Do not round intermediate calculations anc round your answer to 2 decimal places, e.g., 32.16.) c. What is the present value at 22 percent? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) a. b. 234 C. Present value Present value Present value