Finding the Fourth Proportional to 2,519.85, 3,477.32 and 1,443.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.85 : 3,477.32 = 1,443.09 : x
2. Step 2: Convert to fraction form
   2,519.85/3,477.32 = 1,443.09/x
3. Step 3: Cross multiply
   2,519.85x = 3,477.32 × 1,443.09
4. Step 4: Simplify right side
   2,519.85x = 5,018,061.12
5. Step 5: Solve for x
   x = 5,018,061.12/2,519.85
6. Step 6: Final answer
   x = 1,991.42