Finding the Fourth Proportional to 846.50, 1,168.16 and 681.89

Step by Step Solution

1. Step 1: Write the proportion equation
   846.50 : 1,168.16 = 681.89 : x
2. Step 2: Convert to fraction form
   846.50/1,168.16 = 681.89/x
3. Step 3: Cross multiply
   846.50x = 1,168.16 × 681.89
4. Step 4: Simplify right side
   846.50x = 796,547.37
5. Step 5: Solve for x
   x = 796,547.37/846.50
6. Step 6: Final answer
   x = 940.99