Finding the Fourth Proportional to 2,820.27, 3,892.62 and 1,641.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.27 : 3,892.62 = 1,641.52 : x
2. Step 2: Convert to fraction form
   2,820.27/3,892.62 = 1,641.52/x
3. Step 3: Cross multiply
   2,820.27x = 3,892.62 × 1,641.52
4. Step 4: Simplify right side
   2,820.27x = 6,389,813.58
5. Step 5: Solve for x
   x = 6,389,813.58/2,820.27
6. Step 6: Final answer
   x = 2,265.67