Finding the Fourth Proportional to 2,571.32, 3,856.56 and 722.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.32 : 3,856.56 = 722.27 : x
2. Step 2: Convert to fraction form
   2,571.32/3,856.56 = 722.27/x
3. Step 3: Cross multiply
   2,571.32x = 3,856.56 × 722.27
4. Step 4: Simplify right side
   2,571.32x = 2,785,477.59
5. Step 5: Solve for x
   x = 2,785,477.59/2,571.32
6. Step 6: Final answer
   x = 1,083.29