Finding the Fourth Proportional to 1,017.50, 1,523.61 and 529.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.50 : 1,523.61 = 529.47 : x
2. Step 2: Convert to fraction form
   1,017.50/1,523.61 = 529.47/x
3. Step 3: Cross multiply
   1,017.50x = 1,523.61 × 529.47
4. Step 4: Simplify right side
   1,017.50x = 806,705.79
5. Step 5: Solve for x
   x = 806,705.79/1,017.50
6. Step 6: Final answer
   x = 792.84