Finding the Fourth Proportional to 1,168.72, 1,752.54 and 681.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.72 : 1,752.54 = 681.94 : x
2. Step 2: Convert to fraction form
   1,168.72/1,752.54 = 681.94/x
3. Step 3: Cross multiply
   1,168.72x = 1,752.54 × 681.94
4. Step 4: Simplify right side
   1,168.72x = 1,195,127.13
5. Step 5: Solve for x
   x = 1,195,127.13/1,168.72
6. Step 6: Final answer
   x = 1,022.59