Finding the Fourth Proportional to 2,840.57, 4,259.41 and 1,300.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,840.57 : 4,259.41 = 1,300.25 : x
2. Step 2: Convert to fraction form
   2,840.57/4,259.41 = 1,300.25/x
3. Step 3: Cross multiply
   2,840.57x = 4,259.41 × 1,300.25
4. Step 4: Simplify right side
   2,840.57x = 5,538,297.85
5. Step 5: Solve for x
   x = 5,538,297.85/2,840.57
6. Step 6: Final answer
   x = 1,949.71