Finding the Fourth Proportional to 3,166.77, 4,749.75 and 1,086.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,166.77 : 4,749.75 = 1,086.69 : x
2. Step 2: Convert to fraction form
   3,166.77/4,749.75 = 1,086.69/x
3. Step 3: Cross multiply
   3,166.77x = 4,749.75 × 1,086.69
4. Step 4: Simplify right side
   3,166.77x = 5,161,505.83
5. Step 5: Solve for x
   x = 5,161,505.83/3,166.77
6. Step 6: Final answer
   x = 1,629.90