Finding the Fourth Proportional to 1,017.62, 1,404.26 and 569.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.62 : 1,404.26 = 569.42 : x
2. Step 2: Convert to fraction form
   1,017.62/1,404.26 = 569.42/x
3. Step 3: Cross multiply
   1,017.62x = 1,404.26 × 569.42
4. Step 4: Simplify right side
   1,017.62x = 799,603.86
5. Step 5: Solve for x
   x = 799,603.86/1,017.62
6. Step 6: Final answer
   x = 785.76