Finding the Fourth Proportional to 2,229.69, 3,330.97 and 1,443.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.69 : 3,330.97 = 1,443.28 : x
2. Step 2: Convert to fraction form
   2,229.69/3,330.97 = 1,443.28/x
3. Step 3: Cross multiply
   2,229.69x = 3,330.97 × 1,443.28
4. Step 4: Simplify right side
   2,229.69x = 4,807,518.77
5. Step 5: Solve for x
   x = 4,807,518.77/2,229.69
6. Step 6: Final answer
   x = 2,156.14