Finding the Fourth Proportional to 2,622.73, 3,619.23 and 1,443.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.73 : 3,619.23 = 1,443.57 : x
2. Step 2: Convert to fraction form
   2,622.73/3,619.23 = 1,443.57/x
3. Step 3: Cross multiply
   2,622.73x = 3,619.23 × 1,443.57
4. Step 4: Simplify right side
   2,622.73x = 5,224,611.85
5. Step 5: Solve for x
   x = 5,224,611.85/2,622.73
6. Step 6: Final answer
   x = 1,992.05