Finding the Fourth Proportional to 3,481.63, 4,804.89 and 2,156.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,481.63 : 4,804.89 = 2,156.09 : x
2. Step 2: Convert to fraction form
   3,481.63/4,804.89 = 2,156.09/x
3. Step 3: Cross multiply
   3,481.63x = 4,804.89 × 2,156.09
4. Step 4: Simplify right side
   3,481.63x = 10,359,775.28
5. Step 5: Solve for x
   x = 10,359,775.28/3,481.63
6. Step 6: Final answer
   x = 2,975.56