Finding the Fourth Proportional to 1,016.95, 1,523.31 and 528.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.95 : 1,523.31 = 528.52 : x
2. Step 2: Convert to fraction form
   1,016.95/1,523.31 = 528.52/x
3. Step 3: Cross multiply
   1,016.95x = 1,523.31 × 528.52
4. Step 4: Simplify right side
   1,016.95x = 805,099.80
5. Step 5: Solve for x
   x = 805,099.80/1,016.95
6. Step 6: Final answer
   x = 791.68