Finding the Fourth Proportional to 3,730.26, 5,147.37 and 2,158.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,730.26 : 5,147.37 = 2,158.05 : x
2. Step 2: Convert to fraction form
   3,730.26/5,147.37 = 2,158.05/x
3. Step 3: Cross multiply
   3,730.26x = 5,147.37 × 2,158.05
4. Step 4: Simplify right side
   3,730.26x = 11,108,281.83
5. Step 5: Solve for x
   x = 11,108,281.83/3,730.26
6. Step 6: Final answer
   x = 2,977.88