Finding the Fourth Proportional to 1,180.72, 1,629.02 and 683.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.72 : 1,629.02 = 683.17 : x
2. Step 2: Convert to fraction form
   1,180.72/1,629.02 = 683.17/x
3. Step 3: Cross multiply
   1,180.72x = 1,629.02 × 683.17
4. Step 4: Simplify right side
   1,180.72x = 1,112,894.18
5. Step 5: Solve for x
   x = 1,112,894.18/1,180.72
6. Step 6: Final answer
   x = 942.56