Finding the Fourth Proportional to 2,799.94, 3,864.12 and 1,854.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.94 : 3,864.12 = 1,854.10 : x
2. Step 2: Convert to fraction form
   2,799.94/3,864.12 = 1,854.10/x
3. Step 3: Cross multiply
   2,799.94x = 3,864.12 × 1,854.10
4. Step 4: Simplify right side
   2,799.94x = 7,164,464.89
5. Step 5: Solve for x
   x = 7,164,464.89/2,799.94
6. Step 6: Final answer
   x = 2,558.79