Finding the Fourth Proportional to 498.74, 747.82 and 190.62

Step by Step Solution

1. Step 1: Write the proportion equation
   498.74 : 747.82 = 190.62 : x
2. Step 2: Convert to fraction form
   498.74/747.82 = 190.62/x
3. Step 3: Cross multiply
   498.74x = 747.82 × 190.62
4. Step 4: Simplify right side
   498.74x = 142,549.45
5. Step 5: Solve for x
   x = 142,549.45/498.74
6. Step 6: Final answer
   x = 285.82