Finding the Fourth Proportional to 1,150.50, 1,587.72 and 653.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.50 : 1,587.72 = 653.12 : x
2. Step 2: Convert to fraction form
   1,150.50/1,587.72 = 653.12/x
3. Step 3: Cross multiply
   1,150.50x = 1,587.72 × 653.12
4. Step 4: Simplify right side
   1,150.50x = 1,036,971.69
5. Step 5: Solve for x
   x = 1,036,971.69/1,150.50
6. Step 6: Final answer
   x = 901.32