Finding the Fourth Proportional to 3,166.49, 4,748.34 and 1,086.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,166.49 : 4,748.34 = 1,086.69 : x
2. Step 2: Convert to fraction form
   3,166.49/4,748.34 = 1,086.69/x
3. Step 3: Cross multiply
   3,166.49x = 4,748.34 × 1,086.69
4. Step 4: Simplify right side
   3,166.49x = 5,159,973.59
5. Step 5: Solve for x
   x = 5,159,973.59/3,166.49
6. Step 6: Final answer
   x = 1,629.56