Finding the Fourth Proportional to 1,017.98, 1,404.80 and 575.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.98 : 1,404.80 = 575.86 : x
2. Step 2: Convert to fraction form
   1,017.98/1,404.80 = 575.86/x
3. Step 3: Cross multiply
   1,017.98x = 1,404.80 × 575.86
4. Step 4: Simplify right side
   1,017.98x = 808,968.13
5. Step 5: Solve for x
   x = 808,968.13/1,017.98
6. Step 6: Final answer
   x = 794.68