Finding the Fourth Proportional to 2,941.89, 4,413.12 and 861.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,941.89 : 4,413.12 = 861.92 : x
2. Step 2: Convert to fraction form
   2,941.89/4,413.12 = 861.92/x
3. Step 3: Cross multiply
   2,941.89x = 4,413.12 × 861.92
4. Step 4: Simplify right side
   2,941.89x = 3,803,734.32
5. Step 5: Solve for x
   x = 3,803,734.32/2,941.89
6. Step 6: Final answer
   x = 1,292.96