Finding the Fourth Proportional to 498.93, 748.17 and 152.19

Step by Step Solution

1. Step 1: Write the proportion equation
   498.93 : 748.17 = 152.19 : x
2. Step 2: Convert to fraction form
   498.93/748.17 = 152.19/x
3. Step 3: Cross multiply
   498.93x = 748.17 × 152.19
4. Step 4: Simplify right side
   498.93x = 113,861.89
5. Step 5: Solve for x
   x = 113,861.89/498.93
6. Step 6: Final answer
   x = 228.21