Finding the Fourth Proportional to 3,713.78, 5,570.52 and 940.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,713.78 : 5,570.52 = 940.55 : x
2. Step 2: Convert to fraction form
   3,713.78/5,570.52 = 940.55/x
3. Step 3: Cross multiply
   3,713.78x = 5,570.52 × 940.55
4. Step 4: Simplify right side
   3,713.78x = 5,239,324.73
5. Step 5: Solve for x
   x = 5,239,324.73/3,713.78
6. Step 6: Final answer
   x = 1,410.78