Finding the Fourth Proportional to 1,566.72, 2,162.16 and 868.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566.72 : 2,162.16 = 868.08 : x
2. Step 2: Convert to fraction form
   1,566.72/2,162.16 = 868.08/x
3. Step 3: Cross multiply
   1,566.72x = 2,162.16 × 868.08
4. Step 4: Simplify right side
   1,566.72x = 1,876,927.85
5. Step 5: Solve for x
   x = 1,876,927.85/1,566.72
6. Step 6: Final answer
   x = 1,198.00