Finding the Fourth Proportional to 498.43, 747.74 and 151.79

Step by Step Solution

1. Step 1: Write the proportion equation
   498.43 : 747.74 = 151.79 : x
2. Step 2: Convert to fraction form
   498.43/747.74 = 151.79/x
3. Step 3: Cross multiply
   498.43x = 747.74 × 151.79
4. Step 4: Simplify right side
   498.43x = 113,499.45
5. Step 5: Solve for x
   x = 113,499.45/498.43
6. Step 6: Final answer
   x = 227.71