Finding the Fourth Proportional to 3,779.96, 5,653.76 and 2,728.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,779.96 : 5,653.76 = 2,728.17 : x
2. Step 2: Convert to fraction form
   3,779.96/5,653.76 = 2,728.17/x
3. Step 3: Cross multiply
   3,779.96x = 5,653.76 × 2,728.17
4. Step 4: Simplify right side
   3,779.96x = 15,424,404.78
5. Step 5: Solve for x
   x = 15,424,404.78/3,779.96
6. Step 6: Final answer
   x = 4,080.58