Finding the Fourth Proportional to 1,061.34, 1,463.82 and 668.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.34 : 1,463.82 = 668.22 : x
2. Step 2: Convert to fraction form
   1,061.34/1,463.82 = 668.22/x
3. Step 3: Cross multiply
   1,061.34x = 1,463.82 × 668.22
4. Step 4: Simplify right side
   1,061.34x = 978,153.80
5. Step 5: Solve for x
   x = 978,153.80/1,061.34
6. Step 6: Final answer
   x = 921.62