Finding the Fourth Proportional to 1,531.92, 2,113.82 and 868.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.92 : 2,113.82 = 868.82 : x
2. Step 2: Convert to fraction form
   1,531.92/2,113.82 = 868.82/x
3. Step 3: Cross multiply
   1,531.92x = 2,113.82 × 868.82
4. Step 4: Simplify right side
   1,531.92x = 1,836,529.09
5. Step 5: Solve for x
   x = 1,836,529.09/1,531.92
6. Step 6: Final answer
   x = 1,198.84