Finding the Fourth Proportional to 498.25, 747.35 and 238.37

Step by Step Solution

1. Step 1: Write the proportion equation
   498.25 : 747.35 = 238.37 : x
2. Step 2: Convert to fraction form
   498.25/747.35 = 238.37/x
3. Step 3: Cross multiply
   498.25x = 747.35 × 238.37
4. Step 4: Simplify right side
   498.25x = 178,145.82
5. Step 5: Solve for x
   x = 178,145.82/498.25
6. Step 6: Final answer
   x = 357.54