Finding the Fourth Proportional to 1,015.84, 1,401.86 and 573.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.84 : 1,401.86 = 573.89 : x
2. Step 2: Convert to fraction form
   1,015.84/1,401.86 = 573.89/x
3. Step 3: Cross multiply
   1,015.84x = 1,401.86 × 573.89
4. Step 4: Simplify right side
   1,015.84x = 804,510.57
5. Step 5: Solve for x
   x = 804,510.57/1,015.84
6. Step 6: Final answer
   x = 791.97