Finding the Fourth Proportional to 3,196.13, 4,410.61 and 1,779.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.13 : 4,410.61 = 1,779.78 : x
2. Step 2: Convert to fraction form
   3,196.13/4,410.61 = 1,779.78/x
3. Step 3: Cross multiply
   3,196.13x = 4,410.61 × 1,779.78
4. Step 4: Simplify right side
   3,196.13x = 7,849,915.47
5. Step 5: Solve for x
   x = 7,849,915.47/3,196.13
6. Step 6: Final answer
   x = 2,456.07