Finding the Fourth Proportional to 1,641.81, 2,265.71 and 895.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,641.81 : 2,265.71 = 895.78 : x
2. Step 2: Convert to fraction form
   1,641.81/2,265.71 = 895.78/x
3. Step 3: Cross multiply
   1,641.81x = 2,265.71 × 895.78
4. Step 4: Simplify right side
   1,641.81x = 2,029,582.43
5. Step 5: Solve for x
   x = 2,029,582.43/1,641.81
6. Step 6: Final answer
   x = 1,236.19