Finding the Fourth Proportional to 1,682.58, 2,321.72 and 984.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.58 : 2,321.72 = 984.18 : x
2. Step 2: Convert to fraction form
   1,682.58/2,321.72 = 984.18/x
3. Step 3: Cross multiply
   1,682.58x = 2,321.72 × 984.18
4. Step 4: Simplify right side
   1,682.58x = 2,284,990.39
5. Step 5: Solve for x
   x = 2,284,990.39/1,682.58
6. Step 6: Final answer
   x = 1,358.03