Finding the Fourth Proportional to 1,015.93, 1,401.87 and 573.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.93 : 1,401.87 = 573.74 : x
2. Step 2: Convert to fraction form
   1,015.93/1,401.87 = 573.74/x
3. Step 3: Cross multiply
   1,015.93x = 1,401.87 × 573.74
4. Step 4: Simplify right side
   1,015.93x = 804,308.89
5. Step 5: Solve for x
   x = 804,308.89/1,015.93
6. Step 6: Final answer
   x = 791.70