Finding the Fourth Proportional to 1,008.91, 1,392.27 and 566.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008.91 : 1,392.27 = 566.86 : x
2. Step 2: Convert to fraction form
   1,008.91/1,392.27 = 566.86/x
3. Step 3: Cross multiply
   1,008.91x = 1,392.27 × 566.86
4. Step 4: Simplify right side
   1,008.91x = 789,222.17
5. Step 5: Solve for x
   x = 789,222.17/1,008.91
6. Step 6: Final answer
   x = 782.25