Finding the Fourth Proportional to 2,738.78, 3,775.10 and 1,854.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,738.78 : 3,775.10 = 1,854.26 : x
2. Step 2: Convert to fraction form
   2,738.78/3,775.10 = 1,854.26/x
3. Step 3: Cross multiply
   2,738.78x = 3,775.10 × 1,854.26
4. Step 4: Simplify right side
   2,738.78x = 7,000,016.93
5. Step 5: Solve for x
   x = 7,000,016.93/2,738.78
6. Step 6: Final answer
   x = 2,555.89