Finding the Fourth Proportional to 3,986.29, 5,501.32 and 2,217.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.29 : 5,501.32 = 2,217.86 : x
2. Step 2: Convert to fraction form
   3,986.29/5,501.32 = 2,217.86/x
3. Step 3: Cross multiply
   3,986.29x = 5,501.32 × 2,217.86
4. Step 4: Simplify right side
   3,986.29x = 12,201,145.15
5. Step 5: Solve for x
   x = 12,201,145.15/3,986.29
6. Step 6: Final answer
   x = 3,060.78