Finding the Fourth Proportional to 498.45, 746.52 and 481.15

Step by Step Solution

1. Step 1: Write the proportion equation
   498.45 : 746.52 = 481.15 : x
2. Step 2: Convert to fraction form
   498.45/746.52 = 481.15/x
3. Step 3: Cross multiply
   498.45x = 746.52 × 481.15
4. Step 4: Simplify right side
   498.45x = 359,188.10
5. Step 5: Solve for x
   x = 359,188.10/498.45
6. Step 6: Final answer
   x = 720.61