Finding the Fourth Proportional to 1,015.94, 1,401.96 and 573.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.94 : 1,401.96 = 573.89 : x
2. Step 2: Convert to fraction form
   1,015.94/1,401.96 = 573.89/x
3. Step 3: Cross multiply
   1,015.94x = 1,401.96 × 573.89
4. Step 4: Simplify right side
   1,015.94x = 804,562.74
5. Step 5: Solve for x
   x = 804,562.74/1,015.94
6. Step 6: Final answer
   x = 791.94