Finding the Fourth Proportional to 3,914.82, 5,401.77 and 2,587.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.82 : 5,401.77 = 2,587.83 : x
2. Step 2: Convert to fraction form
   3,914.82/5,401.77 = 2,587.83/x
3. Step 3: Cross multiply
   3,914.82x = 5,401.77 × 2,587.83
4. Step 4: Simplify right side
   3,914.82x = 13,978,862.46
5. Step 5: Solve for x
   x = 13,978,862.46/3,914.82
6. Step 6: Final answer
   x = 3,570.75