Finding the Fourth Proportional to 2,622.48, 3,618.89 and 1,443.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.48 : 3,618.89 = 1,443.33 : x
2. Step 2: Convert to fraction form
   2,622.48/3,618.89 = 1,443.33/x
3. Step 3: Cross multiply
   2,622.48x = 3,618.89 × 1,443.33
4. Step 4: Simplify right side
   2,622.48x = 5,223,245.29
5. Step 5: Solve for x
   x = 5,223,245.29/2,622.48
6. Step 6: Final answer
   x = 1,991.72