Finding the Fourth Proportional to 2,385.85, 3,292.30 and 1,323.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.85 : 3,292.30 = 1,323.61 : x
2. Step 2: Convert to fraction form
   2,385.85/3,292.30 = 1,323.61/x
3. Step 3: Cross multiply
   2,385.85x = 3,292.30 × 1,323.61
4. Step 4: Simplify right side
   2,385.85x = 4,357,721.20
5. Step 5: Solve for x
   x = 4,357,721.20/2,385.85
6. Step 6: Final answer
   x = 1,826.49