Finding the Fourth Proportional to 1,728.34, 2,384.86 and 982.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.34 : 2,384.86 = 982.25 : x
2. Step 2: Convert to fraction form
   1,728.34/2,384.86 = 982.25/x
3. Step 3: Cross multiply
   1,728.34x = 2,384.86 × 982.25
4. Step 4: Simplify right side
   1,728.34x = 2,342,527.70
5. Step 5: Solve for x
   x = 2,342,527.70/1,728.34
6. Step 6: Final answer
   x = 1,355.36