Finding the Fourth Proportional to 3,987.27, 5,502.03 and 2,308.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,987.27 : 5,502.03 = 2,308.34 : x
2. Step 2: Convert to fraction form
   3,987.27/5,502.03 = 2,308.34/x
3. Step 3: Cross multiply
   3,987.27x = 5,502.03 × 2,308.34
4. Step 4: Simplify right side
   3,987.27x = 12,700,528.42
5. Step 5: Solve for x
   x = 12,700,528.42/3,987.27
6. Step 6: Final answer
   x = 3,185.27