Finding the Fourth Proportional to 2,235.17, 3,084.43 and 1,240.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,235.17 : 3,084.43 = 1,240.43 : x
2. Step 2: Convert to fraction form
   2,235.17/3,084.43 = 1,240.43/x
3. Step 3: Cross multiply
   2,235.17x = 3,084.43 × 1,240.43
4. Step 4: Simplify right side
   2,235.17x = 3,826,019.50
5. Step 5: Solve for x
   x = 3,826,019.50/2,235.17
6. Step 6: Final answer
   x = 1,711.74