Finding the Fourth Proportional to 1,689.33, 2,331.27 and 943.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689.33 : 2,331.27 = 943.28 : x
2. Step 2: Convert to fraction form
   1,689.33/2,331.27 = 943.28/x
3. Step 3: Cross multiply
   1,689.33x = 2,331.27 × 943.28
4. Step 4: Simplify right side
   1,689.33x = 2,199,046.61
5. Step 5: Solve for x
   x = 2,199,046.61/1,689.33
6. Step 6: Final answer
   x = 1,301.73