Finding the Fourth Proportional to 2,155.50, 3,231.49 and 1,332.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.50 : 3,231.49 = 1,332.03 : x
2. Step 2: Convert to fraction form
   2,155.50/3,231.49 = 1,332.03/x
3. Step 3: Cross multiply
   2,155.50x = 3,231.49 × 1,332.03
4. Step 4: Simplify right side
   2,155.50x = 4,304,441.62
5. Step 5: Solve for x
   x = 4,304,441.62/2,155.50
6. Step 6: Final answer
   x = 1,996.96