Finding the Fourth Proportional to 1,143.29, 1,577.72 and 677.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143.29 : 1,577.72 = 677.54 : x
2. Step 2: Convert to fraction form
   1,143.29/1,577.72 = 677.54/x
3. Step 3: Cross multiply
   1,143.29x = 1,577.72 × 677.54
4. Step 4: Simplify right side
   1,143.29x = 1,068,974.05
5. Step 5: Solve for x
   x = 1,068,974.05/1,143.29
6. Step 6: Final answer
   x = 935.00