Finding the Fourth Proportional to 1,684.31, 2,324.37 and 938.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,684.31 : 2,324.37 = 938.33 : x
2. Step 2: Convert to fraction form
   1,684.31/2,324.37 = 938.33/x
3. Step 3: Cross multiply
   1,684.31x = 2,324.37 × 938.33
4. Step 4: Simplify right side
   1,684.31x = 2,181,026.72
5. Step 5: Solve for x
   x = 2,181,026.72/1,684.31
6. Step 6: Final answer
   x = 1,294.91