Finding the Fourth Proportional to 1,016.05, 1,522.64 and 576.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.05 : 1,522.64 = 576.49 : x
2. Step 2: Convert to fraction form
   1,016.05/1,522.64 = 576.49/x
3. Step 3: Cross multiply
   1,016.05x = 1,522.64 × 576.49
4. Step 4: Simplify right side
   1,016.05x = 877,783.85
5. Step 5: Solve for x
   x = 877,783.85/1,016.05
6. Step 6: Final answer
   x = 863.92