Finding the Fourth Proportional to 1,180.54, 1,628.67 and 676.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.54 : 1,628.67 = 676.42 : x
2. Step 2: Convert to fraction form
   1,180.54/1,628.67 = 676.42/x
3. Step 3: Cross multiply
   1,180.54x = 1,628.67 × 676.42
4. Step 4: Simplify right side
   1,180.54x = 1,101,663.43
5. Step 5: Solve for x
   x = 1,101,663.43/1,180.54
6. Step 6: Final answer
   x = 933.19