Finding the Fourth Proportional to 1,567.08, 2,162.56 and 868.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567.08 : 2,162.56 = 868.45 : x
2. Step 2: Convert to fraction form
   1,567.08/2,162.56 = 868.45/x
3. Step 3: Cross multiply
   1,567.08x = 2,162.56 × 868.45
4. Step 4: Simplify right side
   1,567.08x = 1,878,070.89
5. Step 5: Solve for x
   x = 1,878,070.89/1,567.08
6. Step 6: Final answer
   x = 1,198.46