Finding the Fourth Proportional to 1,373.76, 2,061.25 and 496.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.76 : 2,061.25 = 496.43 : x
2. Step 2: Convert to fraction form
   1,373.76/2,061.25 = 496.43/x
3. Step 3: Cross multiply
   1,373.76x = 2,061.25 × 496.43
4. Step 4: Simplify right side
   1,373.76x = 1,023,262.52
5. Step 5: Solve for x
   x = 1,023,262.52/1,373.76
6. Step 6: Final answer
   x = 744.86