Finding the Fourth Proportional to 2,779.92, 4,153.59 and 2,683.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,779.92 : 4,153.59 = 2,683.05 : x
2. Step 2: Convert to fraction form
   2,779.92/4,153.59 = 2,683.05/x
3. Step 3: Cross multiply
   2,779.92x = 4,153.59 × 2,683.05
4. Step 4: Simplify right side
   2,779.92x = 11,144,289.65
5. Step 5: Solve for x
   x = 11,144,289.65/2,779.92
6. Step 6: Final answer
   x = 4,008.85