Finding the Fourth Proportional to 3,264.89, 4,877.46 and 2,085.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,264.89 : 4,877.46 = 2,085.42 : x
2. Step 2: Convert to fraction form
   3,264.89/4,877.46 = 2,085.42/x
3. Step 3: Cross multiply
   3,264.89x = 4,877.46 × 2,085.42
4. Step 4: Simplify right side
   3,264.89x = 10,171,570.92
5. Step 5: Solve for x
   x = 10,171,570.92/3,264.89
6. Step 6: Final answer
   x = 3,115.45