Finding the Fourth Proportional to 2,288.06, 3,157.52 and 1,240.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.06 : 3,157.52 = 1,240.14 : x
2. Step 2: Convert to fraction form
   2,288.06/3,157.52 = 1,240.14/x
3. Step 3: Cross multiply
   2,288.06x = 3,157.52 × 1,240.14
4. Step 4: Simplify right side
   2,288.06x = 3,915,766.85
5. Step 5: Solve for x
   x = 3,915,766.85/2,288.06
6. Step 6: Final answer
   x = 1,711.39