Finding the Fourth Proportional to 2,622.85, 3,619.52 and 1,443.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.85 : 3,619.52 = 1,443.92 : x
2. Step 2: Convert to fraction form
   2,622.85/3,619.52 = 1,443.92/x
3. Step 3: Cross multiply
   2,622.85x = 3,619.52 × 1,443.92
4. Step 4: Simplify right side
   2,622.85x = 5,226,286.05
5. Step 5: Solve for x
   x = 5,226,286.05/2,622.85
6. Step 6: Final answer
   x = 1,992.60