Finding the Fourth Proportional to 2,339.34, 3,228.24 and 1,291.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.34 : 3,228.24 = 1,291.38 : x
2. Step 2: Convert to fraction form
   2,339.34/3,228.24 = 1,291.38/x
3. Step 3: Cross multiply
   2,339.34x = 3,228.24 × 1,291.38
4. Step 4: Simplify right side
   2,339.34x = 4,168,884.57
5. Step 5: Solve for x
   x = 4,168,884.57/2,339.34
6. Step 6: Final answer
   x = 1,782.08