Finding the Fourth Proportional to 3,413.32, 5,111.78 and 1,948.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,413.32 : 5,111.78 = 1,948.03 : x
2. Step 2: Convert to fraction form
   3,413.32/5,111.78 = 1,948.03/x
3. Step 3: Cross multiply
   3,413.32x = 5,111.78 × 1,948.03
4. Step 4: Simplify right side
   3,413.32x = 9,957,878.27
5. Step 5: Solve for x
   x = 9,957,878.27/3,413.32
6. Step 6: Final answer
   x = 2,917.36