Finding the Fourth Proportional to 1,443.89, 2,155.38 and 1,268.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.89 : 2,155.38 = 1,268.73 : x
2. Step 2: Convert to fraction form
   1,443.89/2,155.38 = 1,268.73/x
3. Step 3: Cross multiply
   1,443.89x = 2,155.38 × 1,268.73
4. Step 4: Simplify right side
   1,443.89x = 2,734,596.67
5. Step 5: Solve for x
   x = 2,734,596.67/1,443.89
6. Step 6: Final answer
   x = 1,893.91