Finding the Fourth Proportional to 1,531.52, 2,113.32 and 868.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531.52 : 2,113.32 = 868.25 : x
2. Step 2: Convert to fraction form
   1,531.52/2,113.32 = 868.25/x
3. Step 3: Cross multiply
   1,531.52x = 2,113.32 × 868.25
4. Step 4: Simplify right side
   1,531.52x = 1,834,890.09
5. Step 5: Solve for x
   x = 1,834,890.09/1,531.52
6. Step 6: Final answer
   x = 1,198.08