Finding the Fourth Proportional to 1,114.46, 1,671.69 and 498.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.46 : 1,671.69 = 498.15 : x
2. Step 2: Convert to fraction form
   1,114.46/1,671.69 = 498.15/x
3. Step 3: Cross multiply
   1,114.46x = 1,671.69 × 498.15
4. Step 4: Simplify right side
   1,114.46x = 832,751.44
5. Step 5: Solve for x
   x = 832,751.44/1,114.46
6. Step 6: Final answer
   x = 747.23