Finding the Fourth Proportional to 2,182.71, 3,011.64 and 1,238.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.71 : 3,011.64 = 1,238.27 : x
2. Step 2: Convert to fraction form
   2,182.71/3,011.64 = 1,238.27/x
3. Step 3: Cross multiply
   2,182.71x = 3,011.64 × 1,238.27
4. Step 4: Simplify right side
   2,182.71x = 3,729,223.46
5. Step 5: Solve for x
   x = 3,729,223.46/2,182.71
6. Step 6: Final answer
   x = 1,708.53