Finding the Fourth Proportional to 1,364.48, 2,044.64 and 998.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.48 : 2,044.64 = 998.72 : x
2. Step 2: Convert to fraction form
   1,364.48/2,044.64 = 998.72/x
3. Step 3: Cross multiply
   1,364.48x = 2,044.64 × 998.72
4. Step 4: Simplify right side
   1,364.48x = 2,042,022.86
5. Step 5: Solve for x
   x = 2,042,022.86/1,364.48
6. Step 6: Final answer
   x = 1,496.56