Finding the Fourth Proportional to 1,049.43, 1,448.20 and 656.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.43 : 1,448.20 = 656.38 : x
2. Step 2: Convert to fraction form
   1,049.43/1,448.20 = 656.38/x
3. Step 3: Cross multiply
   1,049.43x = 1,448.20 × 656.38
4. Step 4: Simplify right side
   1,049.43x = 950,569.52
5. Step 5: Solve for x
   x = 950,569.52/1,049.43
6. Step 6: Final answer
   x = 905.80