Finding the Fourth Proportional to 3,638.37, 5,017.74 and 2,629.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,638.37 : 5,017.74 = 2,629.82 : x
2. Step 2: Convert to fraction form
   3,638.37/5,017.74 = 2,629.82/x
3. Step 3: Cross multiply
   3,638.37x = 5,017.74 × 2,629.82
4. Step 4: Simplify right side
   3,638.37x = 13,195,727.92
5. Step 5: Solve for x
   x = 13,195,727.92/3,638.37
6. Step 6: Final answer
   x = 3,626.82