Finding the Fourth Proportional to 2,234.77, 3,083.94 and 1,240.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.77 : 3,083.94 = 1,240.05 : x
2. Step 2: Convert to fraction form
   2,234.77/3,083.94 = 1,240.05/x
3. Step 3: Cross multiply
   2,234.77x = 3,083.94 × 1,240.05
4. Step 4: Simplify right side
   2,234.77x = 3,824,239.80
5. Step 5: Solve for x
   x = 3,824,239.80/2,234.77
6. Step 6: Final answer
   x = 1,711.25