Finding the Fourth Proportional to 2,572.50, 3,550.86 and 1,641

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.50 : 3,550.86 = 1,641 : x
2. Step 2: Convert to fraction form
   2,572.50/3,550.86 = 1,641/x
3. Step 3: Cross multiply
   2,572.50x = 3,550.86 × 1,641
4. Step 4: Simplify right side
   2,572.50x = 5,826,961.26
5. Step 5: Solve for x
   x = 5,826,961.26/2,572.50
6. Step 6: Final answer
   x = 2,265.10