Finding the Fourth Proportional to 2,580.03, 3,869.15 and 848.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.03 : 3,869.15 = 848.25 : x
2. Step 2: Convert to fraction form
   2,580.03/3,869.15 = 848.25/x
3. Step 3: Cross multiply
   2,580.03x = 3,869.15 × 848.25
4. Step 4: Simplify right side
   2,580.03x = 3,282,002.25
5. Step 5: Solve for x
   x = 3,282,002.25/2,580.03
6. Step 6: Final answer
   x = 1,272.08