The function f(x) = 800(1.09)4x shows the growth due to interest that Jim earns on an investment. The steps to calculate an equivalent function are shown below:
[Step 1] f(x) = 800(1.09)4x

[Step 2] f(x) = 800(1.094)x

[Step 3] f(x) = 800(1.4116)x

[Step 4] f(x) = (1129.27)x

Which of the following is the first incorrect step?

Step 1
Step 2
Step 3
Step 4