Finding the Fourth Proportional to 2,866.73, 4,300.31 and 918.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.73 : 4,300.31 = 918.82 : x
2. Step 2: Convert to fraction form
   2,866.73/4,300.31 = 918.82/x
3. Step 3: Cross multiply
   2,866.73x = 4,300.31 × 918.82
4. Step 4: Simplify right side
   2,866.73x = 3,951,195.49
5. Step 5: Solve for x
   x = 3,951,195.49/2,866.73
6. Step 6: Final answer
   x = 1,378.29