Finding the Fourth Proportional to 2,472.14, 3,405.69 and 1,724.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.14 : 3,405.69 = 1,724.78 : x
2. Step 2: Convert to fraction form
   2,472.14/3,405.69 = 1,724.78/x
3. Step 3: Cross multiply
   2,472.14x = 3,405.69 × 1,724.78
4. Step 4: Simplify right side
   2,472.14x = 5,874,048.97
5. Step 5: Solve for x
   x = 5,874,048.97/2,472.14
6. Step 6: Final answer
   x = 2,376.10