Finding the Fourth Proportional to 2,768.72, 4,126.68 and 2,613.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,768.72 : 4,126.68 = 2,613.04 : x
2. Step 2: Convert to fraction form
   2,768.72/4,126.68 = 2,613.04/x
3. Step 3: Cross multiply
   2,768.72x = 4,126.68 × 2,613.04
4. Step 4: Simplify right side
   2,768.72x = 10,783,179.91
5. Step 5: Solve for x
   x = 10,783,179.91/2,768.72
6. Step 6: Final answer
   x = 3,894.64