Finding the Fourth Proportional to 1,567.05, 2,162.49 and 868.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567.05 : 2,162.49 = 868.43 : x
2. Step 2: Convert to fraction form
   1,567.05/2,162.49 = 868.43/x
3. Step 3: Cross multiply
   1,567.05x = 2,162.49 × 868.43
4. Step 4: Simplify right side
   1,567.05x = 1,877,960.38
5. Step 5: Solve for x
   x = 1,877,960.38/1,567.05
6. Step 6: Final answer
   x = 1,198.40