Finding the Fourth Proportional to 1,728.82, 2,385.60 and 982.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.82 : 2,385.60 = 982.82 : x
2. Step 2: Convert to fraction form
   1,728.82/2,385.60 = 982.82/x
3. Step 3: Cross multiply
   1,728.82x = 2,385.60 × 982.82
4. Step 4: Simplify right side
   1,728.82x = 2,344,615.39
5. Step 5: Solve for x
   x = 2,344,615.39/1,728.82
6. Step 6: Final answer
   x = 1,356.19