Finding the Fourth Proportional to 2,323.85, 3,485.50 and 862.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.85 : 3,485.50 = 862.61 : x
2. Step 2: Convert to fraction form
   2,323.85/3,485.50 = 862.61/x
3. Step 3: Cross multiply
   2,323.85x = 3,485.50 × 862.61
4. Step 4: Simplify right side
   2,323.85x = 3,006,607.57
5. Step 5: Solve for x
   x = 3,006,607.57/2,323.85
6. Step 6: Final answer
   x = 1,293.81