Finding the Fourth Proportional to 2,340.27, 3,229.74 and 1,292.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.27 : 3,229.74 = 1,292.31 : x
2. Step 2: Convert to fraction form
   2,340.27/3,229.74 = 1,292.31/x
3. Step 3: Cross multiply
   2,340.27x = 3,229.74 × 1,292.31
4. Step 4: Simplify right side
   2,340.27x = 4,173,825.30
5. Step 5: Solve for x
   x = 4,173,825.30/2,340.27
6. Step 6: Final answer
   x = 1,783.48