Finding the Fourth Proportional to 1,229.52, 1,698.89 and 982.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,229.52 : 1,698.89 = 982.88 : x
2. Step 2: Convert to fraction form
   1,229.52/1,698.89 = 982.88/x
3. Step 3: Cross multiply
   1,229.52x = 1,698.89 × 982.88
4. Step 4: Simplify right side
   1,229.52x = 1,669,791.59
5. Step 5: Solve for x
   x = 1,669,791.59/1,229.52
6. Step 6: Final answer
   x = 1,358.08