Finding the Fourth Proportional to 3,986.42, 5,500.66 and 2,284.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.42 : 5,500.66 = 2,284.68 : x
2. Step 2: Convert to fraction form
   3,986.42/5,500.66 = 2,284.68/x
3. Step 3: Cross multiply
   3,986.42x = 5,500.66 × 2,284.68
4. Step 4: Simplify right side
   3,986.42x = 12,567,247.89
5. Step 5: Solve for x
   x = 12,567,247.89/3,986.42
6. Step 6: Final answer
   x = 3,152.51