Information on four investment proposals is given below: Investment Proposal Investment required $ (300,000) (140,000) $(100,000) $ (1,500,000) Present value of cash inflows Net present value Life of the project 424,800 191,700 151,100 2,001,700 $ 124,800 S 51,700 $ 51,100 $ 501,700 6 years 5 years 7 years 6 years Required: 1. Compute the project profitability index for each investment proposal. (Round your answers to 2 decimal places.) Investment Profitability Project Proposal Index 1.42