Finding the Fourth Proportional to 2,622.36, 3,618.86 and 1,443.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.36 : 3,618.86 = 1,443.43 : x
2. Step 2: Convert to fraction form
   2,622.36/3,618.86 = 1,443.43/x
3. Step 3: Cross multiply
   2,622.36x = 3,618.86 × 1,443.43
4. Step 4: Simplify right side
   2,622.36x = 5,223,568.40
5. Step 5: Solve for x
   x = 5,223,568.40/2,622.36
6. Step 6: Final answer
   x = 1,991.93