Finding the Fourth Proportional to 3,800.15, 5,648.94 and 3,688.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,800.15 : 5,648.94 = 3,688.03 : x
2. Step 2: Convert to fraction form
   3,800.15/5,648.94 = 3,688.03/x
3. Step 3: Cross multiply
   3,800.15x = 5,648.94 × 3,688.03
4. Step 4: Simplify right side
   3,800.15x = 20,833,413.50
5. Step 5: Solve for x
   x = 20,833,413.50/3,800.15
6. Step 6: Final answer
   x = 5,482.26