Finding the Fourth Proportional to 2,728.17, 4,064.81 and 2,700.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,728.17 : 4,064.81 = 2,700.86 : x
2. Step 2: Convert to fraction form
   2,728.17/4,064.81 = 2,700.86/x
3. Step 3: Cross multiply
   2,728.17x = 4,064.81 × 2,700.86
4. Step 4: Simplify right side
   2,728.17x = 10,978,448.91
5. Step 5: Solve for x
   x = 10,978,448.91/2,728.17
6. Step 6: Final answer
   x = 4,024.11