Finding the Fourth Proportional to 1,178.93, 1,626.82 and 681.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,178.93 : 1,626.82 = 681.75 : x
2. Step 2: Convert to fraction form
   1,178.93/1,626.82 = 681.75/x
3. Step 3: Cross multiply
   1,178.93x = 1,626.82 × 681.75
4. Step 4: Simplify right side
   1,178.93x = 1,109,082.83
5. Step 5: Solve for x
   x = 1,109,082.83/1,178.93
6. Step 6: Final answer
   x = 940.75