Finding the Fourth Proportional to 2,617.32, 3,926.52 and 768.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.32 : 3,926.52 = 768.49 : x
2. Step 2: Convert to fraction form
   2,617.32/3,926.52 = 768.49/x
3. Step 3: Cross multiply
   2,617.32x = 3,926.52 × 768.49
4. Step 4: Simplify right side
   2,617.32x = 3,017,491.35
5. Step 5: Solve for x
   x = 3,017,491.35/2,617.32
6. Step 6: Final answer
   x = 1,152.89