Finding the Fourth Proportional to 1,150.71, 1,588.11 and 653.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.71 : 1,588.11 = 653.43 : x
2. Step 2: Convert to fraction form
   1,150.71/1,588.11 = 653.43/x
3. Step 3: Cross multiply
   1,150.71x = 1,588.11 × 653.43
4. Step 4: Simplify right side
   1,150.71x = 1,037,718.72
5. Step 5: Solve for x
   x = 1,037,718.72/1,150.71
6. Step 6: Final answer
   x = 901.81