Finding the Fourth Proportional to 3,264.55, 4,895.78 and 1,072.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,264.55 : 4,895.78 = 1,072.78 : x
2. Step 2: Convert to fraction form
   3,264.55/4,895.78 = 1,072.78/x
3. Step 3: Cross multiply
   3,264.55x = 4,895.78 × 1,072.78
4. Step 4: Simplify right side
   3,264.55x = 5,252,077.27
5. Step 5: Solve for x
   x = 5,252,077.27/3,264.55
6. Step 6: Final answer
   x = 1,608.82