Finding the Fourth Proportional to 1,061.16, 1,462.24 and 812.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.16 : 1,462.24 = 812.48 : x
2. Step 2: Convert to fraction form
   1,061.16/1,462.24 = 812.48/x
3. Step 3: Cross multiply
   1,061.16x = 1,462.24 × 812.48
4. Step 4: Simplify right side
   1,061.16x = 1,188,040.76
5. Step 5: Solve for x
   x = 1,188,040.76/1,061.16
6. Step 6: Final answer
   x = 1,119.57