Finding the Fourth Proportional to 2,570.22, 3,855.33 and 622.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570.22 : 3,855.33 = 622.42 : x
2. Step 2: Convert to fraction form
   2,570.22/3,855.33 = 622.42/x
3. Step 3: Cross multiply
   2,570.22x = 3,855.33 × 622.42
4. Step 4: Simplify right side
   2,570.22x = 2,399,634.50
5. Step 5: Solve for x
   x = 2,399,634.50/2,570.22
6. Step 6: Final answer
   x = 933.63