Finding the Fourth Proportional to 2,577.03, 3,864.69 and 845.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.03 : 3,864.69 = 845.25 : x
2. Step 2: Convert to fraction form
   2,577.03/3,864.69 = 845.25/x
3. Step 3: Cross multiply
   2,577.03x = 3,864.69 × 845.25
4. Step 4: Simplify right side
   2,577.03x = 3,266,629.22
5. Step 5: Solve for x
   x = 3,266,629.22/2,577.03
6. Step 6: Final answer
   x = 1,267.59