Finding the Fourth Proportional to 2,109.02, 3,163.34 and 722.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.02 : 3,163.34 = 722.39 : x
2. Step 2: Convert to fraction form
   2,109.02/3,163.34 = 722.39/x
3. Step 3: Cross multiply
   2,109.02x = 3,163.34 × 722.39
4. Step 4: Simplify right side
   2,109.02x = 2,285,151.17
5. Step 5: Solve for x
   x = 2,285,151.17/2,109.02
6. Step 6: Final answer
   x = 1,083.52