Finding the Fourth Proportional to 3,729.78, 5,589.71 and 1,974.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,729.78 : 5,589.71 = 1,974.42 : x
2. Step 2: Convert to fraction form
   3,729.78/5,589.71 = 1,974.42/x
3. Step 3: Cross multiply
   3,729.78x = 5,589.71 × 1,974.42
4. Step 4: Simplify right side
   3,729.78x = 11,036,425.35
5. Step 5: Solve for x
   x = 11,036,425.35/3,729.78
6. Step 6: Final answer
   x = 2,959.00