Finding the Fourth Proportional to 1,682.34, 2,321.55 and 983.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.34 : 2,321.55 = 983.94 : x
2. Step 2: Convert to fraction form
   1,682.34/2,321.55 = 983.94/x
3. Step 3: Cross multiply
   1,682.34x = 2,321.55 × 983.94
4. Step 4: Simplify right side
   1,682.34x = 2,284,265.91
5. Step 5: Solve for x
   x = 2,284,265.91/1,682.34
6. Step 6: Final answer
   x = 1,357.79