Finding the Fourth Proportional to 2,459.20, 3,393.60 and 1,411.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.20 : 3,393.60 = 1,411.12 : x
2. Step 2: Convert to fraction form
   2,459.20/3,393.60 = 1,411.12/x
3. Step 3: Cross multiply
   2,459.20x = 3,393.60 × 1,411.12
4. Step 4: Simplify right side
   2,459.20x = 4,788,776.83
5. Step 5: Solve for x
   x = 4,788,776.83/2,459.20
6. Step 6: Final answer
   x = 1,947.29