Finding the Fourth Proportional to 752.56, 1,036.27 and 708.72

Step by Step Solution

1. Step 1: Write the proportion equation
   752.56 : 1,036.27 = 708.72 : x
2. Step 2: Convert to fraction form
   752.56/1,036.27 = 708.72/x
3. Step 3: Cross multiply
   752.56x = 1,036.27 × 708.72
4. Step 4: Simplify right side
   752.56x = 734,425.27
5. Step 5: Solve for x
   x = 734,425.27/752.56
6. Step 6: Final answer
   x = 975.90