Finding the Fourth Proportional to 2,622.77, 3,619.13 and 1,443.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.77 : 3,619.13 = 1,443.60 : x
2. Step 2: Convert to fraction form
   2,622.77/3,619.13 = 1,443.60/x
3. Step 3: Cross multiply
   2,622.77x = 3,619.13 × 1,443.60
4. Step 4: Simplify right side
   2,622.77x = 5,224,568.85
5. Step 5: Solve for x
   x = 5,224,568.85/2,622.77
6. Step 6: Final answer
   x = 1,992.01