Finding the Fourth Proportional to 2,472.13, 3,411.50 and 1,353.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.13 : 3,411.50 = 1,353.12 : x
2. Step 2: Convert to fraction form
   2,472.13/3,411.50 = 1,353.12/x
3. Step 3: Cross multiply
   2,472.13x = 3,411.50 × 1,353.12
4. Step 4: Simplify right side
   2,472.13x = 4,616,168.88
5. Step 5: Solve for x
   x = 4,616,168.88/2,472.13
6. Step 6: Final answer
   x = 1,867.28