Finding the Fourth Proportional to 2,323.62, 3,485.40 and 862.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,323.62 : 3,485.40 = 862.76 : x
2. Step 2: Convert to fraction form
   2,323.62/3,485.40 = 862.76/x
3. Step 3: Cross multiply
   2,323.62x = 3,485.40 × 862.76
4. Step 4: Simplify right side
   2,323.62x = 3,007,046.28
5. Step 5: Solve for x
   x = 3,007,046.28/2,323.62
6. Step 6: Final answer
   x = 1,294.12