Finding the Fourth Proportional to 3,167.29, 4,749.79 and 1,086.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,167.29 : 4,749.79 = 1,086.73 : x
2. Step 2: Convert to fraction form
   3,167.29/4,749.79 = 1,086.73/x
3. Step 3: Cross multiply
   3,167.29x = 4,749.79 × 1,086.73
4. Step 4: Simplify right side
   3,167.29x = 5,161,753.45
5. Step 5: Solve for x
   x = 5,161,753.45/3,167.29
6. Step 6: Final answer
   x = 1,629.71