Finding the Fourth Proportional to 2,744.90, 4,116.61 and 770.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,744.90 : 4,116.61 = 770.41 : x
2. Step 2: Convert to fraction form
   2,744.90/4,116.61 = 770.41/x
3. Step 3: Cross multiply
   2,744.90x = 4,116.61 × 770.41
4. Step 4: Simplify right side
   2,744.90x = 3,171,473.66
5. Step 5: Solve for x
   x = 3,171,473.66/2,744.90
6. Step 6: Final answer
   x = 1,155.41