For an infrastructure project, the capital investment is $11,387,161, the annual operation and maintenance cost is $710,771, the annual benefit is $2,119,809, and the salvage value is $1,985,013. If the project has a useful of 50 years, and the interest rate is 7% annually. What is the benefit-cost-ratio of this project (keep two decimal places)? For an infrastructure project, the capital investment is $11,387,161, the annual operation and maintenance cost is $710,771, the annual benefit is $2,119,809, and the salvage value is $1,985,013. If the project has a useful of 50 years, and the interest rate is 7% annually. What is the benefit-cost-ratio of this project (keep two decimal places)