Finding the Fourth Proportional to 2,577.71, 3,557.41 and 1,443.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.71 : 3,557.41 = 1,443.48 : x
2. Step 2: Convert to fraction form
   2,577.71/3,557.41 = 1,443.48/x
3. Step 3: Cross multiply
   2,577.71x = 3,557.41 × 1,443.48
4. Step 4: Simplify right side
   2,577.71x = 5,135,072.15
5. Step 5: Solve for x
   x = 5,135,072.15/2,577.71
6. Step 6: Final answer
   x = 1,992.11