Finding the Fourth Proportional to 3,779.76, 5,659.92 and 3,196.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,779.76 : 5,659.92 = 3,196.56 : x
2. Step 2: Convert to fraction form
   3,779.76/5,659.92 = 3,196.56/x
3. Step 3: Cross multiply
   3,779.76x = 5,659.92 × 3,196.56
4. Step 4: Simplify right side
   3,779.76x = 18,092,273.88
5. Step 5: Solve for x
   x = 18,092,273.88/3,779.76
6. Step 6: Final answer
   x = 4,786.62