Finding the Fourth Proportional to 2,213.77, 3,318.69 and 1,434.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.77 : 3,318.69 = 1,434.37 : x
2. Step 2: Convert to fraction form
   2,213.77/3,318.69 = 1,434.37/x
3. Step 3: Cross multiply
   2,213.77x = 3,318.69 × 1,434.37
4. Step 4: Simplify right side
   2,213.77x = 4,760,229.38
5. Step 5: Solve for x
   x = 4,760,229.38/2,213.77
6. Step 6: Final answer
   x = 2,150.28