Finding the Fourth Proportional to 2,629.31, 3,628.29 and 1,434.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.31 : 3,628.29 = 1,434.31 : x
2. Step 2: Convert to fraction form
   2,629.31/3,628.29 = 1,434.31/x
3. Step 3: Cross multiply
   2,629.31x = 3,628.29 × 1,434.31
4. Step 4: Simplify right side
   2,629.31x = 5,204,088.94
5. Step 5: Solve for x
   x = 5,204,088.94/2,629.31
6. Step 6: Final answer
   x = 1,979.26