Finding the Fourth Proportional to 1,243.82, 1,716.50 and 684.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243.82 : 1,716.50 = 684.32 : x
2. Step 2: Convert to fraction form
   1,243.82/1,716.50 = 684.32/x
3. Step 3: Cross multiply
   1,243.82x = 1,716.50 × 684.32
4. Step 4: Simplify right side
   1,243.82x = 1,174,623.28
5. Step 5: Solve for x
   x = 1,174,623.28/1,243.82
6. Step 6: Final answer
   x = 944.37