Finding the Fourth Proportional to 2,003.81, 2,761.29 and 1,443.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.81 : 2,761.29 = 1,443.29 : x
2. Step 2: Convert to fraction form
   2,003.81/2,761.29 = 1,443.29/x
3. Step 3: Cross multiply
   2,003.81x = 2,761.29 × 1,443.29
4. Step 4: Simplify right side
   2,003.81x = 3,985,328.44
5. Step 5: Solve for x
   x = 3,985,328.44/2,003.81
6. Step 6: Final answer
   x = 1,988.88