Problem 10.9 Nakamichi Bancorp has made an investment in banking software at a cost of $1,836,200. Management expects productivity gains and cost savings over the next several years. If, as a result of this investment, the firm is expected to generate additional cash flows of $556,900, $717,600, $519,600, and $342,760 over the next four years, what is the investments payback period? (Round answer to 2 decimal places, e.g. 15.25.) Payback period is years