Finding the Fourth Proportional to 1,086.31, 1,630.34 and 566.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.31 : 1,630.34 = 566.47 : x
2. Step 2: Convert to fraction form
   1,086.31/1,630.34 = 566.47/x
3. Step 3: Cross multiply
   1,086.31x = 1,630.34 × 566.47
4. Step 4: Simplify right side
   1,086.31x = 923,538.70
5. Step 5: Solve for x
   x = 923,538.70/1,086.31
6. Step 6: Final answer
   x = 850.16