Finding the Fourth Proportional to 2,234.99, 3,084.38 and 1,240.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.99 : 3,084.38 = 1,240.31 : x
2. Step 2: Convert to fraction form
   2,234.99/3,084.38 = 1,240.31/x
3. Step 3: Cross multiply
   2,234.99x = 3,084.38 × 1,240.31
4. Step 4: Simplify right side
   2,234.99x = 3,825,593.52
5. Step 5: Solve for x
   x = 3,825,593.52/2,234.99
6. Step 6: Final answer
   x = 1,711.68