Finding the Fourth Proportional to 1,683.82, 2,323.30 and 985.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683.82 : 2,323.30 = 985.06 : x
2. Step 2: Convert to fraction form
   1,683.82/2,323.30 = 985.06/x
3. Step 3: Cross multiply
   1,683.82x = 2,323.30 × 985.06
4. Step 4: Simplify right side
   1,683.82x = 2,288,589.90
5. Step 5: Solve for x
   x = 2,288,589.90/1,683.82
6. Step 6: Final answer
   x = 1,359.17