Finding the Fourth Proportional to 2,549.88, 3,822.66 and 2,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,549.88 : 3,822.66 = 2,086.56 : x
2. Step 2: Convert to fraction form
   2,549.88/3,822.66 = 2,086.56/x
3. Step 3: Cross multiply
   2,549.88x = 3,822.66 × 2,086.56
4. Step 4: Simplify right side
   2,549.88x = 7,976,209.45
5. Step 5: Solve for x
   x = 7,976,209.45/2,549.88
6. Step 6: Final answer
   x = 3,128.07