Finding the Fourth Proportional to 1,180.82, 1,628.88 and 683.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.82 : 1,628.88 = 683.22 : x
2. Step 2: Convert to fraction form
   1,180.82/1,628.88 = 683.22/x
3. Step 3: Cross multiply
   1,180.82x = 1,628.88 × 683.22
4. Step 4: Simplify right side
   1,180.82x = 1,112,883.39
5. Step 5: Solve for x
   x = 1,112,883.39/1,180.82
6. Step 6: Final answer
   x = 942.47