Finding the Fourth Proportional to 2,255.67, 3,107.43 and 1,854.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.67 : 3,107.43 = 1,854.72 : x
2. Step 2: Convert to fraction form
   2,255.67/3,107.43 = 1,854.72/x
3. Step 3: Cross multiply
   2,255.67x = 3,107.43 × 1,854.72
4. Step 4: Simplify right side
   2,255.67x = 5,763,412.57
5. Step 5: Solve for x
   x = 5,763,412.57/2,255.67
6. Step 6: Final answer
   x = 2,555.08