Finding the Fourth Proportional to 1,429.52, 2,144.88 and 649.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.52 : 2,144.88 = 649.49 : x
2. Step 2: Convert to fraction form
   1,429.52/2,144.88 = 649.49/x
3. Step 3: Cross multiply
   1,429.52x = 2,144.88 × 649.49
4. Step 4: Simplify right side
   1,429.52x = 1,393,067.39
5. Step 5: Solve for x
   x = 1,393,067.39/1,429.52
6. Step 6: Final answer
   x = 974.50