Finding the Fourth Proportional to 1,728.16, 2,384.78 and 982.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.16 : 2,384.78 = 982.02 : x
2. Step 2: Convert to fraction form
   1,728.16/2,384.78 = 982.02/x
3. Step 3: Cross multiply
   1,728.16x = 2,384.78 × 982.02
4. Step 4: Simplify right side
   1,728.16x = 2,341,909.83
5. Step 5: Solve for x
   x = 2,341,909.83/1,728.16
6. Step 6: Final answer
   x = 1,355.15