Finding the Fourth Proportional to 498.12, 747.46 and 185.98

Step by Step Solution

1. Step 1: Write the proportion equation
   498.12 : 747.46 = 185.98 : x
2. Step 2: Convert to fraction form
   498.12/747.46 = 185.98/x
3. Step 3: Cross multiply
   498.12x = 747.46 × 185.98
4. Step 4: Simplify right side
   498.12x = 139,012.61
5. Step 5: Solve for x
   x = 139,012.61/498.12
6. Step 6: Final answer
   x = 279.07