Finding the Fourth Proportional to 3,888, 5,363.59 and 2,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,888 : 5,363.59 = 2,629.50 : x
2. Step 2: Convert to fraction form
   3,888/5,363.59 = 2,629.50/x
3. Step 3: Cross multiply
   3,888x = 5,363.59 × 2,629.50
4. Step 4: Simplify right side
   3,888x = 14,103,545.54
5. Step 5: Solve for x
   x = 14,103,545.54/3,888
6. Step 6: Final answer
   x = 3,627.46