Finding the Fourth Proportional to 2,882.82, 3,978.81 and 2,260.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,882.82 : 3,978.81 = 2,260.74 : x
2. Step 2: Convert to fraction form
   2,882.82/3,978.81 = 2,260.74/x
3. Step 3: Cross multiply
   2,882.82x = 3,978.81 × 2,260.74
4. Step 4: Simplify right side
   2,882.82x = 8,995,054.92
5. Step 5: Solve for x
   x = 8,995,054.92/2,882.82
6. Step 6: Final answer
   x = 3,120.23