Finding the Fourth Proportional to 2,440.34, 3,661.55 and 774.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,440.34 : 3,661.55 = 774.59 : x
2. Step 2: Convert to fraction form
   2,440.34/3,661.55 = 774.59/x
3. Step 3: Cross multiply
   2,440.34x = 3,661.55 × 774.59
4. Step 4: Simplify right side
   2,440.34x = 2,836,200.01
5. Step 5: Solve for x
   x = 2,836,200.01/2,440.34
6. Step 6: Final answer
   x = 1,162.22