Finding the Fourth Proportional to 2,134.29, 2,945.72 and 1,283.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.29 : 2,945.72 = 1,283.31 : x
2. Step 2: Convert to fraction form
   2,134.29/2,945.72 = 1,283.31/x
3. Step 3: Cross multiply
   2,134.29x = 2,945.72 × 1,283.31
4. Step 4: Simplify right side
   2,134.29x = 3,780,265.52
5. Step 5: Solve for x
   x = 3,780,265.52/2,134.29
6. Step 6: Final answer
   x = 1,771.21