Finding the Fourth Proportional to 3,910.91, 5,397.35 and 2,582.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.91 : 5,397.35 = 2,582.31 : x
2. Step 2: Convert to fraction form
   3,910.91/5,397.35 = 2,582.31/x
3. Step 3: Cross multiply
   3,910.91x = 5,397.35 × 2,582.31
4. Step 4: Simplify right side
   3,910.91x = 13,937,630.88
5. Step 5: Solve for x
   x = 13,937,630.88/3,910.91
6. Step 6: Final answer
   x = 3,563.78