Finding the Fourth Proportional to 2,620.51, 3,616.38 and 1,441.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.51 : 3,616.38 = 1,441.62 : x
2. Step 2: Convert to fraction form
   2,620.51/3,616.38 = 1,441.62/x
3. Step 3: Cross multiply
   2,620.51x = 3,616.38 × 1,441.62
4. Step 4: Simplify right side
   2,620.51x = 5,213,445.74
5. Step 5: Solve for x
   x = 5,213,445.74/2,620.51
6. Step 6: Final answer
   x = 1,989.48