Finding the Fourth Proportional to 3,413.30, 5,119.92 and 948.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,413.30 : 5,119.92 = 948.12 : x
2. Step 2: Convert to fraction form
   3,413.30/5,119.92 = 948.12/x
3. Step 3: Cross multiply
   3,413.30x = 5,119.92 × 948.12
4. Step 4: Simplify right side
   3,413.30x = 4,854,298.55
5. Step 5: Solve for x
   x = 4,854,298.55/3,413.30
6. Step 6: Final answer
   x = 1,422.17