Finding the Fourth Proportional to 2,959.72, 4,439.50 and 768.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,959.72 : 4,439.50 = 768.37 : x
2. Step 2: Convert to fraction form
   2,959.72/4,439.50 = 768.37/x
3. Step 3: Cross multiply
   2,959.72x = 4,439.50 × 768.37
4. Step 4: Simplify right side
   2,959.72x = 3,411,178.62
5. Step 5: Solve for x
   x = 3,411,178.62/2,959.72
6. Step 6: Final answer
   x = 1,152.53