Finding the Fourth Proportional to 2,989.71, 4,480.52 and 2,901.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,989.71 : 4,480.52 = 2,901.02 : x
2. Step 2: Convert to fraction form
   2,989.71/4,480.52 = 2,901.02/x
3. Step 3: Cross multiply
   2,989.71x = 4,480.52 × 2,901.02
4. Step 4: Simplify right side
   2,989.71x = 12,998,041.22
5. Step 5: Solve for x
   x = 12,998,041.22/2,989.71
6. Step 6: Final answer
   x = 4,347.59