Finding the Fourth Proportional to 3,071.27, 4,238.17 and 1,812.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,071.27 : 4,238.17 = 1,812.72 : x
2. Step 2: Convert to fraction form
   3,071.27/4,238.17 = 1,812.72/x
3. Step 3: Cross multiply
   3,071.27x = 4,238.17 × 1,812.72
4. Step 4: Simplify right side
   3,071.27x = 7,682,606.46
5. Step 5: Solve for x
   x = 7,682,606.46/3,071.27
6. Step 6: Final answer
   x = 2,501.44