Finding the Fourth Proportional to 1,017.75, 1,404.33 and 575.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.75 : 1,404.33 = 575.56 : x
2. Step 2: Convert to fraction form
   1,017.75/1,404.33 = 575.56/x
3. Step 3: Cross multiply
   1,017.75x = 1,404.33 × 575.56
4. Step 4: Simplify right side
   1,017.75x = 808,275.77
5. Step 5: Solve for x
   x = 808,275.77/1,017.75
6. Step 6: Final answer
   x = 794.18