Finding the Fourth Proportional to 498.42, 748.04 and 446.26

Step by Step Solution

1. Step 1: Write the proportion equation
   498.42 : 748.04 = 446.26 : x
2. Step 2: Convert to fraction form
   498.42/748.04 = 446.26/x
3. Step 3: Cross multiply
   498.42x = 748.04 × 446.26
4. Step 4: Simplify right side
   498.42x = 333,820.33
5. Step 5: Solve for x
   x = 333,820.33/498.42
6. Step 6: Final answer
   x = 669.76