Finding the Fourth Proportional to 1,682.37, 2,321.60 and 936.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.37 : 2,321.60 = 936.31 : x
2. Step 2: Convert to fraction form
   1,682.37/2,321.60 = 936.31/x
3. Step 3: Cross multiply
   1,682.37x = 2,321.60 × 936.31
4. Step 4: Simplify right side
   1,682.37x = 2,173,733.83
5. Step 5: Solve for x
   x = 2,173,733.83/1,682.37
6. Step 6: Final answer
   x = 1,292.07