Finding the Fourth Proportional to 1,445.92, 1,995.27 and 816.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.92 : 1,995.27 = 816.49 : x
2. Step 2: Convert to fraction form
   1,445.92/1,995.27 = 816.49/x
3. Step 3: Cross multiply
   1,445.92x = 1,995.27 × 816.49
4. Step 4: Simplify right side
   1,445.92x = 1,629,117.43
5. Step 5: Solve for x
   x = 1,629,117.43/1,445.92
6. Step 6: Final answer
   x = 1,126.70