Finding the Fourth Proportional to 3,729.42, 5,146.56 and 2,157.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,729.42 : 5,146.56 = 2,157.48 : x
2. Step 2: Convert to fraction form
   3,729.42/5,146.56 = 2,157.48/x
3. Step 3: Cross multiply
   3,729.42x = 5,146.56 × 2,157.48
4. Step 4: Simplify right side
   3,729.42x = 11,103,600.27
5. Step 5: Solve for x
   x = 11,103,600.27/3,729.42
6. Step 6: Final answer
   x = 2,977.30