Information on four investment proposals is given below: Investment Proposal Investment required 120,000 (50,000) (50,000) (360,000) 169,200 476,000 Present value of cash inflows 67.300 79,000 49,200 17,300 29,000 116.000 Net present value Life of the project 5 years 7 years 6 years 6 years Required: 1. Compute the project profitability index for each investment proposal. (Round your answers to 2 decimal places.) Investment profitability Proposal Index 2. Rank the proposals in terms of preference OBCA D CABD D C B A A B C D