Finding the Fourth Proportional to 2,155.96, 3,231.06 and 1,333.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.96 : 3,231.06 = 1,333.24 : x
2. Step 2: Convert to fraction form
   2,155.96/3,231.06 = 1,333.24/x
3. Step 3: Cross multiply
   2,155.96x = 3,231.06 × 1,333.24
4. Step 4: Simplify right side
   2,155.96x = 4,307,778.43
5. Step 5: Solve for x
   x = 4,307,778.43/2,155.96
6. Step 6: Final answer
   x = 1,998.08