Finding the Fourth Proportional to 2,622.30, 3,618.69 and 1,443.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.30 : 3,618.69 = 1,443.46 : x
2. Step 2: Convert to fraction form
   2,622.30/3,618.69 = 1,443.46/x
3. Step 3: Cross multiply
   2,622.30x = 3,618.69 × 1,443.46
4. Step 4: Simplify right side
   2,622.30x = 5,223,434.27
5. Step 5: Solve for x
   x = 5,223,434.27/2,622.30
6. Step 6: Final answer
   x = 1,991.93