Finding the Fourth Proportional to 1,049.59, 1,448.40 and 577.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.59 : 1,448.40 = 577.49 : x
2. Step 2: Convert to fraction form
   1,049.59/1,448.40 = 577.49/x
3. Step 3: Cross multiply
   1,049.59x = 1,448.40 × 577.49
4. Step 4: Simplify right side
   1,049.59x = 836,436.52
5. Step 5: Solve for x
   x = 836,436.52/1,049.59
6. Step 6: Final answer
   x = 796.92