Finding the Fourth Proportional to 3,911.86, 5,876.61 and 2,272.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,911.86 : 5,876.61 = 2,272.42 : x
2. Step 2: Convert to fraction form
   3,911.86/5,876.61 = 2,272.42/x
3. Step 3: Cross multiply
   3,911.86x = 5,876.61 × 2,272.42
4. Step 4: Simplify right side
   3,911.86x = 13,354,126.10
5. Step 5: Solve for x
   x = 13,354,126.10/3,911.86
6. Step 6: Final answer
   x = 3,413.75