Finding the Fourth Proportional to 2,489.60, 3,436.81 and 1,441.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,489.60 : 3,436.81 = 1,441.46 : x
2. Step 2: Convert to fraction form
   2,489.60/3,436.81 = 1,441.46/x
3. Step 3: Cross multiply
   2,489.60x = 3,436.81 × 1,441.46
4. Step 4: Simplify right side
   2,489.60x = 4,954,003.35
5. Step 5: Solve for x
   x = 4,954,003.35/2,489.60
6. Step 6: Final answer
   x = 1,989.88