Finding the Fourth Proportional to 2,766.76, 4,151.59 and 918.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.76 : 4,151.59 = 918.34 : x
2. Step 2: Convert to fraction form
   2,766.76/4,151.59 = 918.34/x
3. Step 3: Cross multiply
   2,766.76x = 4,151.59 × 918.34
4. Step 4: Simplify right side
   2,766.76x = 3,812,558.49
5. Step 5: Solve for x
   x = 3,812,558.49/2,766.76
6. Step 6: Final answer
   x = 1,377.99