Finding the Fourth Proportional to 2,339.52, 3,509.88 and 1,243.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.52 : 3,509.88 = 1,243.59 : x
2. Step 2: Convert to fraction form
   2,339.52/3,509.88 = 1,243.59/x
3. Step 3: Cross multiply
   2,339.52x = 3,509.88 × 1,243.59
4. Step 4: Simplify right side
   2,339.52x = 4,364,851.67
5. Step 5: Solve for x
   x = 4,364,851.67/2,339.52
6. Step 6: Final answer
   x = 1,865.70