Finding the Fourth Proportional to 2,109.49, 3,162.03 and 722.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.49 : 3,162.03 = 722.36 : x
2. Step 2: Convert to fraction form
   2,109.49/3,162.03 = 722.36/x
3. Step 3: Cross multiply
   2,109.49x = 3,162.03 × 722.36
4. Step 4: Simplify right side
   2,109.49x = 2,284,123.99
5. Step 5: Solve for x
   x = 2,284,123.99/2,109.49
6. Step 6: Final answer
   x = 1,082.78