Finding the Fourth Proportional to 3,196.55, 4,411.36 and 1,780.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.55 : 4,411.36 = 1,780.24 : x
2. Step 2: Convert to fraction form
   3,196.55/4,411.36 = 1,780.24/x
3. Step 3: Cross multiply
   3,196.55x = 4,411.36 × 1,780.24
4. Step 4: Simplify right side
   3,196.55x = 7,853,285.20
5. Step 5: Solve for x
   x = 7,853,285.20/3,196.55
6. Step 6: Final answer
   x = 2,456.80