Finding the Fourth Proportional to 2,155.20, 3,243.73 and 1,610.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.20 : 3,243.73 = 1,610.27 : x
2. Step 2: Convert to fraction form
   2,155.20/3,243.73 = 1,610.27/x
3. Step 3: Cross multiply
   2,155.20x = 3,243.73 × 1,610.27
4. Step 4: Simplify right side
   2,155.20x = 5,223,281.11
5. Step 5: Solve for x
   x = 5,223,281.11/2,155.20
6. Step 6: Final answer
   x = 2,423.57