Finding the Fourth Proportional to 1,015.94, 1,401.91 and 573.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.94 : 1,401.91 = 573.83 : x
2. Step 2: Convert to fraction form
   1,015.94/1,401.91 = 573.83/x
3. Step 3: Cross multiply
   1,015.94x = 1,401.91 × 573.83
4. Step 4: Simplify right side
   1,015.94x = 804,455.15
5. Step 5: Solve for x
   x = 804,455.15/1,015.94
6. Step 6: Final answer
   x = 791.84