Finding the Fourth Proportional to 2,288.04, 3,157.50 and 1,240.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.04 : 3,157.50 = 1,240.10 : x
2. Step 2: Convert to fraction form
   2,288.04/3,157.50 = 1,240.10/x
3. Step 3: Cross multiply
   2,288.04x = 3,157.50 × 1,240.10
4. Step 4: Simplify right side
   2,288.04x = 3,915,599.96
5. Step 5: Solve for x
   x = 3,915,599.96/2,288.04
6. Step 6: Final answer
   x = 1,711.33