Finding the Fourth Proportional to 1,180.85, 1,629.82 and 683.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.85 : 1,629.82 = 683.42 : x
2. Step 2: Convert to fraction form
   1,180.85/1,629.82 = 683.42/x
3. Step 3: Cross multiply
   1,180.85x = 1,629.82 × 683.42
4. Step 4: Simplify right side
   1,180.85x = 1,113,851.58
5. Step 5: Solve for x
   x = 1,113,851.58/1,180.85
6. Step 6: Final answer
   x = 943.26