Finding the Fourth Proportional to 2,767.18, 4,151.27 and 917.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.18 : 4,151.27 = 917.95 : x
2. Step 2: Convert to fraction form
   2,767.18/4,151.27 = 917.95/x
3. Step 3: Cross multiply
   2,767.18x = 4,151.27 × 917.95
4. Step 4: Simplify right side
   2,767.18x = 3,810,658.30
5. Step 5: Solve for x
   x = 3,810,658.30/2,767.18
6. Step 6: Final answer
   x = 1,377.09