Finding the Fourth Proportional to 2,183.49, 3,271.14 and 1,086.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,183.49 : 3,271.14 = 1,086.57 : x
2. Step 2: Convert to fraction form
   2,183.49/3,271.14 = 1,086.57/x
3. Step 3: Cross multiply
   2,183.49x = 3,271.14 × 1,086.57
4. Step 4: Simplify right side
   2,183.49x = 3,554,322.59
5. Step 5: Solve for x
   x = 3,554,322.59/2,183.49
6. Step 6: Final answer
   x = 1,627.82