Finding the Fourth Proportional to 2,319.94, 3,204.33 and 1,689.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,319.94 : 3,204.33 = 1,689.47 : x
2. Step 2: Convert to fraction form
   2,319.94/3,204.33 = 1,689.47/x
3. Step 3: Cross multiply
   2,319.94x = 3,204.33 × 1,689.47
4. Step 4: Simplify right side
   2,319.94x = 5,413,619.41
5. Step 5: Solve for x
   x = 5,413,619.41/2,319.94
6. Step 6: Final answer
   x = 2,333.52