Finding the Fourth Proportional to 1,114.63, 1,672.17 and 498.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.63 : 1,672.17 = 498.46 : x
2. Step 2: Convert to fraction form
   1,114.63/1,672.17 = 498.46/x
3. Step 3: Cross multiply
   1,114.63x = 1,672.17 × 498.46
4. Step 4: Simplify right side
   1,114.63x = 833,509.86
5. Step 5: Solve for x
   x = 833,509.86/1,114.63
6. Step 6: Final answer
   x = 747.79