Finding the Fourth Proportional to 2,182.21, 3,011.76 and 1,238.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.21 : 3,011.76 = 1,238.23 : x
2. Step 2: Convert to fraction form
   2,182.21/3,011.76 = 1,238.23/x
3. Step 3: Cross multiply
   2,182.21x = 3,011.76 × 1,238.23
4. Step 4: Simplify right side
   2,182.21x = 3,729,250.71
5. Step 5: Solve for x
   x = 3,729,250.71/2,182.21
6. Step 6: Final answer
   x = 1,708.93