Finding the Fourth Proportional to 2,408.47, 3,611.10 and 869.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,408.47 : 3,611.10 = 869.27 : x
2. Step 2: Convert to fraction form
   2,408.47/3,611.10 = 869.27/x
3. Step 3: Cross multiply
   2,408.47x = 3,611.10 × 869.27
4. Step 4: Simplify right side
   2,408.47x = 3,139,020.90
5. Step 5: Solve for x
   x = 3,139,020.90/2,408.47
6. Step 6: Final answer
   x = 1,303.33