Finding the Fourth Proportional to 1,017.36, 1,404.06 and 575.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.36 : 1,404.06 = 575.22 : x
2. Step 2: Convert to fraction form
   1,017.36/1,404.06 = 575.22/x
3. Step 3: Cross multiply
   1,017.36x = 1,404.06 × 575.22
4. Step 4: Simplify right side
   1,017.36x = 807,643.39
5. Step 5: Solve for x
   x = 807,643.39/1,017.36
6. Step 6: Final answer
   x = 793.86