Information on four investment proposals is given below Investment Proposal Investment required S (330,000) $ (40,000) $(190,000) $ (2,380,000) 56,500 286,700 3,178,500 Present value of cash inflows Net present value Life of the project 480,000 $ 150,000 $16,500 $ 96,700 $ 798,500 years years6 years b years Required 1. Compute the project profitability index for each investment proposal. (Round your answers to 2 decimal places.) Project Investment Profitability Proposal Index 0.45 0.41 0.51 0.34