Finding the Fourth Proportional to 2,076.94, 3,111.28 and 977.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.94 : 3,111.28 = 977.97 : x
2. Step 2: Convert to fraction form
   2,076.94/3,111.28 = 977.97/x
3. Step 3: Cross multiply
   2,076.94x = 3,111.28 × 977.97
4. Step 4: Simplify right side
   2,076.94x = 3,042,747.72
5. Step 5: Solve for x
   x = 3,042,747.72/2,076.94
6. Step 6: Final answer
   x = 1,465.01