Finding the Fourth Proportional to 2,426.49, 3,640.41 and 783.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.49 : 3,640.41 = 783.27 : x
2. Step 2: Convert to fraction form
   2,426.49/3,640.41 = 783.27/x
3. Step 3: Cross multiply
   2,426.49x = 3,640.41 × 783.27
4. Step 4: Simplify right side
   2,426.49x = 2,851,423.94
5. Step 5: Solve for x
   x = 2,851,423.94/2,426.49
6. Step 6: Final answer
   x = 1,175.12