Finding the Fourth Proportional to 1,132.52, 1,561.61 and 712.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.52 : 1,561.61 = 712.36 : x
2. Step 2: Convert to fraction form
   1,132.52/1,561.61 = 712.36/x
3. Step 3: Cross multiply
   1,132.52x = 1,561.61 × 712.36
4. Step 4: Simplify right side
   1,132.52x = 1,112,418.91
5. Step 5: Solve for x
   x = 1,112,418.91/1,132.52
6. Step 6: Final answer
   x = 982.25