Finding the Fourth Proportional to 2,229.84, 3,075.12 and 1,443

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.84 : 3,075.12 = 1,443 : x
2. Step 2: Convert to fraction form
   2,229.84/3,075.12 = 1,443/x
3. Step 3: Cross multiply
   2,229.84x = 3,075.12 × 1,443
4. Step 4: Simplify right side
   2,229.84x = 4,437,398.16
5. Step 5: Solve for x
   x = 4,437,398.16/2,229.84
6. Step 6: Final answer
   x = 1,990.01