Finding the Fourth Proportional to 3,410.05, 4,705.68 and 2,151.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,410.05 : 4,705.68 = 2,151.31 : x
2. Step 2: Convert to fraction form
   3,410.05/4,705.68 = 2,151.31/x
3. Step 3: Cross multiply
   3,410.05x = 4,705.68 × 2,151.31
4. Step 4: Simplify right side
   3,410.05x = 10,123,376.44
5. Step 5: Solve for x
   x = 10,123,376.44/3,410.05
6. Step 6: Final answer
   x = 2,968.69