Finding the Fourth Proportional to 2,571.03, 3,856.69 and 722.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571.03 : 3,856.69 = 722.29 : x
2. Step 2: Convert to fraction form
   2,571.03/3,856.69 = 722.29/x
3. Step 3: Cross multiply
   2,571.03x = 3,856.69 × 722.29
4. Step 4: Simplify right side
   2,571.03x = 2,785,644.82
5. Step 5: Solve for x
   x = 2,785,644.82/2,571.03
6. Step 6: Final answer
   x = 1,083.47