Finding the Fourth Proportional to 498.05, 747.06 and 223.94

Step by Step Solution

1. Step 1: Write the proportion equation
   498.05 : 747.06 = 223.94 : x
2. Step 2: Convert to fraction form
   498.05/747.06 = 223.94/x
3. Step 3: Cross multiply
   498.05x = 747.06 × 223.94
4. Step 4: Simplify right side
   498.05x = 167,300.86
5. Step 5: Solve for x
   x = 167,300.86/498.05
6. Step 6: Final answer
   x = 335.91