Finding the Fourth Proportional to 1,076.23, 1,484.69 and 677.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.23 : 1,484.69 = 677.71 : x
2. Step 2: Convert to fraction form
   1,076.23/1,484.69 = 677.71/x
3. Step 3: Cross multiply
   1,076.23x = 1,484.69 × 677.71
4. Step 4: Simplify right side
   1,076.23x = 1,006,178.45
5. Step 5: Solve for x
   x = 1,006,178.45/1,076.23
6. Step 6: Final answer
   x = 934.91