Finding the Fourth Proportional to 1,976.15, 2,964.53 and 677.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976.15 : 2,964.53 = 677.31 : x
2. Step 2: Convert to fraction form
   1,976.15/2,964.53 = 677.31/x
3. Step 3: Cross multiply
   1,976.15x = 2,964.53 × 677.31
4. Step 4: Simplify right side
   1,976.15x = 2,007,905.81
5. Step 5: Solve for x
   x = 2,007,905.81/1,976.15
6. Step 6: Final answer
   x = 1,016.07