15 years ago, a 200-MW thermal power plant cost $100 million. The cost index for this class of equipment 15 years ago was 400 and is now 1200. The cost capacity factor is 0.71. The plant engineering staff is considering a 600-MW unit of the same general design to power another section. Assume we want to add a pre-compressor, which currently costs $28,000. Determine the total cost of the 600-MW unit.

please it is urgent and I need to know the solution asap. Thanks in advance.