Finding the Fourth Proportional to 1,150.91, 1,588.43 and 653.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.91 : 1,588.43 = 653.45 : x
2. Step 2: Convert to fraction form
   1,150.91/1,588.43 = 653.45/x
3. Step 3: Cross multiply
   1,150.91x = 1,588.43 × 653.45
4. Step 4: Simplify right side
   1,150.91x = 1,037,958.53
5. Step 5: Solve for x
   x = 1,037,958.53/1,150.91
6. Step 6: Final answer
   x = 901.86