Finding the Fourth Proportional to 1,023.60, 1,523.82 and 1,017.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,023.60 : 1,523.82 = 1,017.53 : x
2. Step 2: Convert to fraction form
   1,023.60/1,523.82 = 1,017.53/x
3. Step 3: Cross multiply
   1,023.60x = 1,523.82 × 1,017.53
4. Step 4: Simplify right side
   1,023.60x = 1,550,524.95
5. Step 5: Solve for x
   x = 1,550,524.95/1,023.60
6. Step 6: Final answer
   x = 1,514.78