Finding the Fourth Proportional to 3,816.88, 5,724.46 and 1,708.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,816.88 : 5,724.46 = 1,708.72 : x
2. Step 2: Convert to fraction form
   3,816.88/5,724.46 = 1,708.72/x
3. Step 3: Cross multiply
   3,816.88x = 5,724.46 × 1,708.72
4. Step 4: Simplify right side
   3,816.88x = 9,781,499.29
5. Step 5: Solve for x
   x = 9,781,499.29/3,816.88
6. Step 6: Final answer
   x = 2,562.69