Finding the Fourth Proportional to 1,022.94, 1,532.89 and 528.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022.94 : 1,532.89 = 528.23 : x
2. Step 2: Convert to fraction form
   1,022.94/1,532.89 = 528.23/x
3. Step 3: Cross multiply
   1,022.94x = 1,532.89 × 528.23
4. Step 4: Simplify right side
   1,022.94x = 809,722.98
5. Step 5: Solve for x
   x = 809,722.98/1,022.94
6. Step 6: Final answer
   x = 791.56