Finding the Fourth Proportional to 2,789.92, 3,838.72 and 2,559.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.92 : 3,838.72 = 2,559.52 : x
2. Step 2: Convert to fraction form
   2,789.92/3,838.72 = 2,559.52/x
3. Step 3: Cross multiply
   2,789.92x = 3,838.72 × 2,559.52
4. Step 4: Simplify right side
   2,789.92x = 9,825,280.61
5. Step 5: Solve for x
   x = 9,825,280.61/2,789.92
6. Step 6: Final answer
   x = 3,521.71