Finding the Fourth Proportional to 3,196.48, 4,411.16 and 1,780.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.48 : 4,411.16 = 1,780.20 : x
2. Step 2: Convert to fraction form
   3,196.48/4,411.16 = 1,780.20/x
3. Step 3: Cross multiply
   3,196.48x = 4,411.16 × 1,780.20
4. Step 4: Simplify right side
   3,196.48x = 7,852,747.03
5. Step 5: Solve for x
   x = 7,852,747.03/3,196.48
6. Step 6: Final answer
   x = 2,456.69