Finding the Fourth Proportional to 732.72, 1,105.56 and 708.48

Step by Step Solution

1. Step 1: Write the proportion equation
   732.72 : 1,105.56 = 708.48 : x
2. Step 2: Convert to fraction form
   732.72/1,105.56 = 708.48/x
3. Step 3: Cross multiply
   732.72x = 1,105.56 × 708.48
4. Step 4: Simplify right side
   732.72x = 783,267.15
5. Step 5: Solve for x
   x = 783,267.15/732.72
6. Step 6: Final answer
   x = 1,068.99