Finding the Fourth Proportional to 2,722.36, 3,752.94 and 2,685.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.36 : 3,752.94 = 2,685.28 : x
2. Step 2: Convert to fraction form
   2,722.36/3,752.94 = 2,685.28/x
3. Step 3: Cross multiply
   2,722.36x = 3,752.94 × 2,685.28
4. Step 4: Simplify right side
   2,722.36x = 10,077,694.72
5. Step 5: Solve for x
   x = 10,077,694.72/2,722.36
6. Step 6: Final answer
   x = 3,701.82