Finding the Fourth Proportional to 4,086.18, 5,643.54 and 2,757.57

Step by Step Solution

1. Step 1: Write the proportion equation
   4,086.18 : 5,643.54 = 2,757.57 : x
2. Step 2: Convert to fraction form
   4,086.18/5,643.54 = 2,757.57/x
3. Step 3: Cross multiply
   4,086.18x = 5,643.54 × 2,757.57
4. Step 4: Simplify right side
   4,086.18x = 15,562,456.60
5. Step 5: Solve for x
   x = 15,562,456.60/4,086.18
6. Step 6: Final answer
   x = 3,808.56