Finding the Fourth Proportional to 3,255.83, 4,491.80 and 2,407.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,255.83 : 4,491.80 = 2,407.12 : x
2. Step 2: Convert to fraction form
   3,255.83/4,491.80 = 2,407.12/x
3. Step 3: Cross multiply
   3,255.83x = 4,491.80 × 2,407.12
4. Step 4: Simplify right side
   3,255.83x = 10,812,301.62
5. Step 5: Solve for x
   x = 10,812,301.62/3,255.83
6. Step 6: Final answer
   x = 3,320.90