Finding the Fourth Proportional to 1,180.49, 1,628.91 and 683.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.49 : 1,628.91 = 683.15 : x
2. Step 2: Convert to fraction form
   1,180.49/1,628.91 = 683.15/x
3. Step 3: Cross multiply
   1,180.49x = 1,628.91 × 683.15
4. Step 4: Simplify right side
   1,180.49x = 1,112,781.72
5. Step 5: Solve for x
   x = 1,112,781.72/1,180.49
6. Step 6: Final answer
   x = 942.65