Finding the Fourth Proportional to 2,756.78, 4,137.23 and 2,055.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.78 : 4,137.23 = 2,055.59 : x
2. Step 2: Convert to fraction form
   2,756.78/4,137.23 = 2,055.59/x
3. Step 3: Cross multiply
   2,756.78x = 4,137.23 × 2,055.59
4. Step 4: Simplify right side
   2,756.78x = 8,504,464.10
5. Step 5: Solve for x
   x = 8,504,464.10/2,756.78
6. Step 6: Final answer
   x = 3,084.92