Finding the Fourth Proportional to 2,570.51, 3,855.76 and 622.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,570.51 : 3,855.76 = 622.73 : x
2. Step 2: Convert to fraction form
   2,570.51/3,855.76 = 622.73/x
3. Step 3: Cross multiply
   2,570.51x = 3,855.76 × 622.73
4. Step 4: Simplify right side
   2,570.51x = 2,401,105.51
5. Step 5: Solve for x
   x = 2,401,105.51/2,570.51
6. Step 6: Final answer
   x = 934.10