Rolling Plains Farms sold 27,000 bales of hay this year. They have set a goal to increase their sales by 8.6% each year.
Write an exponential function, f(x), that models the goal for the number of hay bales sold x years from now.

Answer Choices:

1. f(x)=27000(1.086)x
2. f(x)=27000(0.086)x
3. f(x)=27(1.086)x
4. f(x)=27000(1.86)x