Finding the Fourth Proportional to 2,339.17, 3,507.71 and 1,243.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.17 : 3,507.71 = 1,243.31 : x
2. Step 2: Convert to fraction form
   2,339.17/3,507.71 = 1,243.31/x
3. Step 3: Cross multiply
   2,339.17x = 3,507.71 × 1,243.31
4. Step 4: Simplify right side
   2,339.17x = 4,361,147.17
5. Step 5: Solve for x
   x = 4,361,147.17/2,339.17
6. Step 6: Final answer
   x = 1,864.40