Finding the Fourth Proportional to 2,472.12, 3,411.61 and 1,353.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.12 : 3,411.61 = 1,353.06 : x
2. Step 2: Convert to fraction form
   2,472.12/3,411.61 = 1,353.06/x
3. Step 3: Cross multiply
   2,472.12x = 3,411.61 × 1,353.06
4. Step 4: Simplify right side
   2,472.12x = 4,616,109.64
5. Step 5: Solve for x
   x = 4,616,109.64/2,472.12
6. Step 6: Final answer
   x = 1,867.27