Finding the Fourth Proportional to 1,061.34, 1,463.46 and 864.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.34 : 1,463.46 = 864.48 : x
2. Step 2: Convert to fraction form
   1,061.34/1,463.46 = 864.48/x
3. Step 3: Cross multiply
   1,061.34x = 1,463.46 × 864.48
4. Step 4: Simplify right side
   1,061.34x = 1,265,131.90
5. Step 5: Solve for x
   x = 1,265,131.90/1,061.34
6. Step 6: Final answer
   x = 1,192.01