Nick is planning to drive across the country, and he is deciding between a southern route and a northern route. He uses the following pieces of information to determine the total cost of gasoline for each route: His car needs 18 gallons of gasoline for every 396 miles driven.
The southern route is 3,102 miles long, and the average cost of gasoline along this route is $2.20 per gallon of gasoline.

The northern route is 2,948 miles long, and the average cost of gasoline along this route is $2.28 per gallon of gasoline.

What would be the total cost of gasoline for each route? Show your work.