Finding the Fourth Proportional to 1,039.32, 1,434.24 and 573.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.32 : 1,434.24 = 573.54 : x
2. Step 2: Convert to fraction form
   1,039.32/1,434.24 = 573.54/x
3. Step 3: Cross multiply
   1,039.32x = 1,434.24 × 573.54
4. Step 4: Simplify right side
   1,039.32x = 822,594.01
5. Step 5: Solve for x
   x = 822,594.01/1,039.32
6. Step 6: Final answer
   x = 791.47