Finding the Fourth Proportional to 660.72, 911.03 and 536.00

Step by Step Solution

1. Step 1: Write the proportion equation
   660.72 : 911.03 = 536.00 : x
2. Step 2: Convert to fraction form
   660.72/911.03 = 536.00/x
3. Step 3: Cross multiply
   660.72x = 911.03 × 536.00
4. Step 4: Simplify right side
   660.72x = 488,308.86
5. Step 5: Solve for x
   x = 488,308.86/660.72
6. Step 6: Final answer
   x = 739.06