Finding the Fourth Proportional to 1,039.09, 1,433.87 and 573.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.09 : 1,433.87 = 573.34 : x
2. Step 2: Convert to fraction form
   1,039.09/1,433.87 = 573.34/x
3. Step 3: Cross multiply
   1,039.09x = 1,433.87 × 573.34
4. Step 4: Simplify right side
   1,039.09x = 822,095.03
5. Step 5: Solve for x
   x = 822,095.03/1,039.09
6. Step 6: Final answer
   x = 791.17