Finding the Fourth Proportional to 1,245.27, 1,717.89 and 996

Step by Step Solution

1. Step 1: Write the proportion equation
   1,245.27 : 1,717.89 = 996 : x
2. Step 2: Convert to fraction form
   1,245.27/1,717.89 = 996/x
3. Step 3: Cross multiply
   1,245.27x = 1,717.89 × 996
4. Step 4: Simplify right side
   1,245.27x = 1,711,018.44
5. Step 5: Solve for x
   x = 1,711,018.44/1,245.27
6. Step 6: Final answer
   x = 1,374.01