Finding the Fourth Proportional to 2,504.57, 3,457.05 and 1,620.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.57 : 3,457.05 = 1,620.43 : x
2. Step 2: Convert to fraction form
   2,504.57/3,457.05 = 1,620.43/x
3. Step 3: Cross multiply
   2,504.57x = 3,457.05 × 1,620.43
4. Step 4: Simplify right side
   2,504.57x = 5,601,916.21
5. Step 5: Solve for x
   x = 5,601,916.21/2,504.57
6. Step 6: Final answer
   x = 2,236.68