Finding the Fourth Proportional to 2,798.83, 3,860.42 and 2,425.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.83 : 3,860.42 = 2,425.15 : x
2. Step 2: Convert to fraction form
   2,798.83/3,860.42 = 2,425.15/x
3. Step 3: Cross multiply
   2,798.83x = 3,860.42 × 2,425.15
4. Step 4: Simplify right side
   2,798.83x = 9,362,078.26
5. Step 5: Solve for x
   x = 9,362,078.26/2,798.83
6. Step 6: Final answer
   x = 3,345.00