Finding the Fourth Proportional to 1,096.47, 1,512.23 and 816.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.47 : 1,512.23 = 816.71 : x
2. Step 2: Convert to fraction form
   1,096.47/1,512.23 = 816.71/x
3. Step 3: Cross multiply
   1,096.47x = 1,512.23 × 816.71
4. Step 4: Simplify right side
   1,096.47x = 1,235,041.72
5. Step 5: Solve for x
   x = 1,235,041.72/1,096.47
6. Step 6: Final answer
   x = 1,126.38