Finding the Fourth Proportional to 4,111.10, 6,167.55 and 1,645.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,111.10 : 6,167.55 = 1,645.30 : x
2. Step 2: Convert to fraction form
   4,111.10/6,167.55 = 1,645.30/x
3. Step 3: Cross multiply
   4,111.10x = 6,167.55 × 1,645.30
4. Step 4: Simplify right side
   4,111.10x = 10,147,470.02
5. Step 5: Solve for x
   x = 10,147,470.02/4,111.10
6. Step 6: Final answer
   x = 2,468.31