Finding the Fourth Proportional to 3,910.41, 5,392.85 and 2,585.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.41 : 5,392.85 = 2,585.48 : x
2. Step 2: Convert to fraction form
   3,910.41/5,392.85 = 2,585.48/x
3. Step 3: Cross multiply
   3,910.41x = 5,392.85 × 2,585.48
4. Step 4: Simplify right side
   3,910.41x = 13,943,065.93
5. Step 5: Solve for x
   x = 13,943,065.93/3,910.41
6. Step 6: Final answer
   x = 3,565.63