Finding the Fourth Proportional to 2,816.38, 4,222.29 and 1,174.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,816.38 : 4,222.29 = 1,174.15 : x
2. Step 2: Convert to fraction form
   2,816.38/4,222.29 = 1,174.15/x
3. Step 3: Cross multiply
   2,816.38x = 4,222.29 × 1,174.15
4. Step 4: Simplify right side
   2,816.38x = 4,957,601.80
5. Step 5: Solve for x
   x = 4,957,601.80/2,816.38
6. Step 6: Final answer
   x = 1,760.27