Finding the Fourth Proportional to 2,766.96, 4,150.86 and 918.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.96 : 4,150.86 = 918.54 : x
2. Step 2: Convert to fraction form
   2,766.96/4,150.86 = 918.54/x
3. Step 3: Cross multiply
   2,766.96x = 4,150.86 × 918.54
4. Step 4: Simplify right side
   2,766.96x = 3,812,730.94
5. Step 5: Solve for x
   x = 3,812,730.94/2,766.96
6. Step 6: Final answer
   x = 1,377.95