Finding the Fourth Proportional to 2,959.94, 4,439.86 and 768.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,959.94 : 4,439.86 = 768.49 : x
2. Step 2: Convert to fraction form
   2,959.94/4,439.86 = 768.49/x
3. Step 3: Cross multiply
   2,959.94x = 4,439.86 × 768.49
4. Step 4: Simplify right side
   2,959.94x = 3,411,988.01
5. Step 5: Solve for x
   x = 3,411,988.01/2,959.94
6. Step 6: Final answer
   x = 1,152.72