Finding the Fourth Proportional to 3,517.89, 4,856.94 and 2,259.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,517.89 : 4,856.94 = 2,259.57 : x
2. Step 2: Convert to fraction form
   3,517.89/4,856.94 = 2,259.57/x
3. Step 3: Cross multiply
   3,517.89x = 4,856.94 × 2,259.57
4. Step 4: Simplify right side
   3,517.89x = 10,974,595.92
5. Step 5: Solve for x
   x = 10,974,595.92/3,517.89
6. Step 6: Final answer
   x = 3,119.65