Finding the Fourth Proportional to 1,567.27, 2,162.82 and 868.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567.27 : 2,162.82 = 868.63 : x
2. Step 2: Convert to fraction form
   1,567.27/2,162.82 = 868.63/x
3. Step 3: Cross multiply
   1,567.27x = 2,162.82 × 868.63
4. Step 4: Simplify right side
   1,567.27x = 1,878,690.34
5. Step 5: Solve for x
   x = 1,878,690.34/1,567.27
6. Step 6: Final answer
   x = 1,198.70