Finding the Fourth Proportional to 1,017.69, 1,404.39 and 575.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.69 : 1,404.39 = 575.56 : x
2. Step 2: Convert to fraction form
   1,017.69/1,404.39 = 575.56/x
3. Step 3: Cross multiply
   1,017.69x = 1,404.39 × 575.56
4. Step 4: Simplify right side
   1,017.69x = 808,310.71
5. Step 5: Solve for x
   x = 808,310.71/1,017.69
6. Step 6: Final answer
   x = 794.26