Finding the Fourth Proportional to 2,885.47, 4,324.71 and 1,323.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.47 : 4,324.71 = 1,323.31 : x
2. Step 2: Convert to fraction form
   2,885.47/4,324.71 = 1,323.31/x
3. Step 3: Cross multiply
   2,885.47x = 4,324.71 × 1,323.31
4. Step 4: Simplify right side
   2,885.47x = 5,722,910.21
5. Step 5: Solve for x
   x = 5,722,910.21/2,885.47
6. Step 6: Final answer
   x = 1,983.35