Finding the Fourth Proportional to 1,416.72, 1,954.20 and 996.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,416.72 : 1,954.20 = 996.48 : x
2. Step 2: Convert to fraction form
   1,416.72/1,954.20 = 996.48/x
3. Step 3: Cross multiply
   1,416.72x = 1,954.20 × 996.48
4. Step 4: Simplify right side
   1,416.72x = 1,947,321.22
5. Step 5: Solve for x
   x = 1,947,321.22/1,416.72
6. Step 6: Final answer
   x = 1,374.53