Finding the Fourth Proportional to 2,767.30, 4,150.53 and 918.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,767.30 : 4,150.53 = 918.43 : x
2. Step 2: Convert to fraction form
   2,767.30/4,150.53 = 918.43/x
3. Step 3: Cross multiply
   2,767.30x = 4,150.53 × 918.43
4. Step 4: Simplify right side
   2,767.30x = 3,811,960.89
5. Step 5: Solve for x
   x = 3,811,960.89/2,767.30
6. Step 6: Final answer
   x = 1,377.50