Finding the Fourth Proportional to 2,744.82, 4,116.20 and 989.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,744.82 : 4,116.20 = 989.36 : x
2. Step 2: Convert to fraction form
   2,744.82/4,116.20 = 989.36/x
3. Step 3: Cross multiply
   2,744.82x = 4,116.20 × 989.36
4. Step 4: Simplify right side
   2,744.82x = 4,072,378.10
5. Step 5: Solve for x
   x = 4,072,378.10/2,744.82
6. Step 6: Final answer
   x = 1,483.66