Finding the Fourth Proportional to 2,687.40, 4,025.61 and 2,410.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687.40 : 4,025.61 = 2,410.83 : x
2. Step 2: Convert to fraction form
   2,687.40/4,025.61 = 2,410.83/x
3. Step 3: Cross multiply
   2,687.40x = 4,025.61 × 2,410.83
4. Step 4: Simplify right side
   2,687.40x = 9,705,061.36
5. Step 5: Solve for x
   x = 9,705,061.36/2,687.40
6. Step 6: Final answer
   x = 3,611.32