Finding the Fourth Proportional to 2,604.49, 3,900.15 and 2,018.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,604.49 : 3,900.15 = 2,018.52 : x
2. Step 2: Convert to fraction form
   2,604.49/3,900.15 = 2,018.52/x
3. Step 3: Cross multiply
   2,604.49x = 3,900.15 × 2,018.52
4. Step 4: Simplify right side
   2,604.49x = 7,872,530.78
5. Step 5: Solve for x
   x = 7,872,530.78/2,604.49
6. Step 6: Final answer
   x = 3,022.68