Finding the Fourth Proportional to 498.05, 747.33 and 190.09

Step by Step Solution

1. Step 1: Write the proportion equation
   498.05 : 747.33 = 190.09 : x
2. Step 2: Convert to fraction form
   498.05/747.33 = 190.09/x
3. Step 3: Cross multiply
   498.05x = 747.33 × 190.09
4. Step 4: Simplify right side
   498.05x = 142,060.18
5. Step 5: Solve for x
   x = 142,060.18/498.05
6. Step 6: Final answer
   x = 285.23