Finding the Fourth Proportional to 2,123.23, 3,183.40 and 1,081.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.23 : 3,183.40 = 1,081.22 : x
2. Step 2: Convert to fraction form
   2,123.23/3,183.40 = 1,081.22/x
3. Step 3: Cross multiply
   2,123.23x = 3,183.40 × 1,081.22
4. Step 4: Simplify right side
   2,123.23x = 3,441,934.42
5. Step 5: Solve for x
   x = 3,441,934.42/2,123.23
6. Step 6: Final answer
   x = 1,621.08