Finding the Fourth Proportional to 1,180.91, 1,629.47 and 683.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.91 : 1,629.47 = 683.59 : x
2. Step 2: Convert to fraction form
   1,180.91/1,629.47 = 683.59/x
3. Step 3: Cross multiply
   1,180.91x = 1,629.47 × 683.59
4. Step 4: Simplify right side
   1,180.91x = 1,113,881.91
5. Step 5: Solve for x
   x = 1,113,881.91/1,180.91
6. Step 6: Final answer
   x = 943.24