Finding the Fourth Proportional to 2,671.74, 4,007.12 and 724.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,671.74 : 4,007.12 = 724.10 : x
2. Step 2: Convert to fraction form
   2,671.74/4,007.12 = 724.10/x
3. Step 3: Cross multiply
   2,671.74x = 4,007.12 × 724.10
4. Step 4: Simplify right side
   2,671.74x = 2,901,555.59
5. Step 5: Solve for x
   x = 2,901,555.59/2,671.74
6. Step 6: Final answer
   x = 1,086.02