Finding the Fourth Proportional to 1,728.06, 2,384.82 and 942.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.06 : 2,384.82 = 942.12 : x
2. Step 2: Convert to fraction form
   1,728.06/2,384.82 = 942.12/x
3. Step 3: Cross multiply
   1,728.06x = 2,384.82 × 942.12
4. Step 4: Simplify right side
   1,728.06x = 2,246,786.62
5. Step 5: Solve for x
   x = 2,246,786.62/1,728.06
6. Step 6: Final answer
   x = 1,300.18