Finding the Fourth Proportional to 1,047.74, 1,571.33 and 498.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.74 : 1,571.33 = 498.83 : x
2. Step 2: Convert to fraction form
   1,047.74/1,571.33 = 498.83/x
3. Step 3: Cross multiply
   1,047.74x = 1,571.33 × 498.83
4. Step 4: Simplify right side
   1,047.74x = 783,818.69
5. Step 5: Solve for x
   x = 783,818.69/1,047.74
6. Step 6: Final answer
   x = 748.11