Finding the Fourth Proportional to 1,086.73, 1,626.25 and 676.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.73 : 1,626.25 = 676.06 : x
2. Step 2: Convert to fraction form
   1,086.73/1,626.25 = 676.06/x
3. Step 3: Cross multiply
   1,086.73x = 1,626.25 × 676.06
4. Step 4: Simplify right side
   1,086.73x = 1,099,442.58
5. Step 5: Solve for x
   x = 1,099,442.58/1,086.73
6. Step 6: Final answer
   x = 1,011.70