Finding the Fourth Proportional to 2,472.57, 3,411.72 and 1,478.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.57 : 3,411.72 = 1,478.25 : x
2. Step 2: Convert to fraction form
   2,472.57/3,411.72 = 1,478.25/x
3. Step 3: Cross multiply
   2,472.57x = 3,411.72 × 1,478.25
4. Step 4: Simplify right side
   2,472.57x = 5,043,375.09
5. Step 5: Solve for x
   x = 5,043,375.09/2,472.57
6. Step 6: Final answer
   x = 2,039.73