Finding the Fourth Proportional to 3,255.87, 4,872.70 and 2,069.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,255.87 : 4,872.70 = 2,069.31 : x
2. Step 2: Convert to fraction form
   3,255.87/4,872.70 = 2,069.31/x
3. Step 3: Cross multiply
   3,255.87x = 4,872.70 × 2,069.31
4. Step 4: Simplify right side
   3,255.87x = 10,083,116.49
5. Step 5: Solve for x
   x = 10,083,116.49/3,255.87
6. Step 6: Final answer
   x = 3,096.90