Finding the Fourth Proportional to 3,729.82, 5,147.24 and 2,158.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,729.82 : 5,147.24 = 2,158.02 : x
2. Step 2: Convert to fraction form
   3,729.82/5,147.24 = 2,158.02/x
3. Step 3: Cross multiply
   3,729.82x = 5,147.24 × 2,158.02
4. Step 4: Simplify right side
   3,729.82x = 11,107,846.86
5. Step 5: Solve for x
   x = 11,107,846.86/3,729.82
6. Step 6: Final answer
   x = 2,978.12