Finding the Fourth Proportional to 2,622.28, 3,618.80 and 1,443.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.28 : 3,618.80 = 1,443.43 : x
2. Step 2: Convert to fraction form
   2,622.28/3,618.80 = 1,443.43/x
3. Step 3: Cross multiply
   2,622.28x = 3,618.80 × 1,443.43
4. Step 4: Simplify right side
   2,622.28x = 5,223,484.48
5. Step 5: Solve for x
   x = 5,223,484.48/2,622.28
6. Step 6: Final answer
   x = 1,991.96