Finding the Fourth Proportional to 9,786.90, 14,680.37 and 2,391.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,786.90 : 14,680.37 = 2,391.37 : x
2. Step 2: Convert to fraction form
   9,786.90/14,680.37 = 2,391.37/x
3. Step 3: Cross multiply
   9,786.90x = 14,680.37 × 2,391.37
4. Step 4: Simplify right side
   9,786.90x = 35,106,165.68
5. Step 5: Solve for x
   x = 35,106,165.68/9,786.90
6. Step 6: Final answer
   x = 3,587.06