Finding the Fourth Proportional to 2,635.25, 3,952.89 and 786.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.25 : 3,952.89 = 786.38 : x
2. Step 2: Convert to fraction form
   2,635.25/3,952.89 = 786.38/x
3. Step 3: Cross multiply
   2,635.25x = 3,952.89 × 786.38
4. Step 4: Simplify right side
   2,635.25x = 3,108,453.87
5. Step 5: Solve for x
   x = 3,108,453.87/2,635.25
6. Step 6: Final answer
   x = 1,179.57