Finding the Fourth Proportional to 2,461.08, 3,394.56 and 1,620.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,461.08 : 3,394.56 = 1,620.40 : x
2. Step 2: Convert to fraction form
   2,461.08/3,394.56 = 1,620.40/x
3. Step 3: Cross multiply
   2,461.08x = 3,394.56 × 1,620.40
4. Step 4: Simplify right side
   2,461.08x = 5,500,545.02
5. Step 5: Solve for x
   x = 5,500,545.02/2,461.08
6. Step 6: Final answer
   x = 2,235.01