Finding the Fourth Proportional to 1,728.23, 2,384.91 and 942.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,728.23 : 2,384.91 = 942.27 : x
2. Step 2: Convert to fraction form
   1,728.23/2,384.91 = 942.27/x
3. Step 3: Cross multiply
   1,728.23x = 2,384.91 × 942.27
4. Step 4: Simplify right side
   1,728.23x = 2,247,229.15
5. Step 5: Solve for x
   x = 2,247,229.15/1,728.23
6. Step 6: Final answer
   x = 1,300.31