Finding the Fourth Proportional to 2,635.49, 3,952.69 and 786.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.49 : 3,952.69 = 786.11 : x
2. Step 2: Convert to fraction form
   2,635.49/3,952.69 = 786.11/x
3. Step 3: Cross multiply
   2,635.49x = 3,952.69 × 786.11
4. Step 4: Simplify right side
   2,635.49x = 3,107,227.41
5. Step 5: Solve for x
   x = 3,107,227.41/2,635.49
6. Step 6: Final answer
   x = 1,179.00