Finding the Fourth Proportional to 2,460.92, 3,397.48 and 1,621.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.92 : 3,397.48 = 1,621.31 : x
2. Step 2: Convert to fraction form
   2,460.92/3,397.48 = 1,621.31/x
3. Step 3: Cross multiply
   2,460.92x = 3,397.48 × 1,621.31
4. Step 4: Simplify right side
   2,460.92x = 5,508,368.69
5. Step 5: Solve for x
   x = 5,508,368.69/2,460.92
6. Step 6: Final answer
   x = 2,238.34