Finding the Fourth Proportional to 2,620.71, 3,616.70 and 1,441.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.71 : 3,616.70 = 1,441.82 : x
2. Step 2: Convert to fraction form
   2,620.71/3,616.70 = 1,441.82/x
3. Step 3: Cross multiply
   2,620.71x = 3,616.70 × 1,441.82
4. Step 4: Simplify right side
   2,620.71x = 5,214,632.23
5. Step 5: Solve for x
   x = 5,214,632.23/2,620.71
6. Step 6: Final answer
   x = 1,989.78