Finding the Fourth Proportional to 2,109.14, 3,162.90 and 722.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.14 : 3,162.90 = 722.22 : x
2. Step 2: Convert to fraction form
   2,109.14/3,162.90 = 722.22/x
3. Step 3: Cross multiply
   2,109.14x = 3,162.90 × 722.22
4. Step 4: Simplify right side
   2,109.14x = 2,284,296.42
5. Step 5: Solve for x
   x = 2,284,296.42/2,109.14
6. Step 6: Final answer
   x = 1,083.05