Finding the Fourth Proportional to 3,905.16, 5,852.96 and 2,150.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,905.16 : 5,852.96 = 2,150.09 : x
2. Step 2: Convert to fraction form
   3,905.16/5,852.96 = 2,150.09/x
3. Step 3: Cross multiply
   3,905.16x = 5,852.96 × 2,150.09
4. Step 4: Simplify right side
   3,905.16x = 12,584,413.69
5. Step 5: Solve for x
   x = 12,584,413.69/3,905.16
6. Step 6: Final answer
   x = 3,222.51