Finding the Fourth Proportional to 2,109.50, 3,163.92 and 722.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.50 : 3,163.92 = 722.52 : x
2. Step 2: Convert to fraction form
   2,109.50/3,163.92 = 722.52/x
3. Step 3: Cross multiply
   2,109.50x = 3,163.92 × 722.52
4. Step 4: Simplify right side
   2,109.50x = 2,285,983.61
5. Step 5: Solve for x
   x = 2,285,983.61/2,109.50
6. Step 6: Final answer
   x = 1,083.66