Finding the Fourth Proportional to 3,196.98, 4,411.80 and 1,780.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.98 : 4,411.80 = 1,780.62 : x
2. Step 2: Convert to fraction form
   3,196.98/4,411.80 = 1,780.62/x
3. Step 3: Cross multiply
   3,196.98x = 4,411.80 × 1,780.62
4. Step 4: Simplify right side
   3,196.98x = 7,855,739.32
5. Step 5: Solve for x
   x = 7,855,739.32/3,196.98
6. Step 6: Final answer
   x = 2,457.24