Finding the Fourth Proportional to 2,827.00, 3,904.25 and 2,517.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,827.00 : 3,904.25 = 2,517.78 : x
2. Step 2: Convert to fraction form
   2,827.00/3,904.25 = 2,517.78/x
3. Step 3: Cross multiply
   2,827.00x = 3,904.25 × 2,517.78
4. Step 4: Simplify right side
   2,827.00x = 9,830,058.78
5. Step 5: Solve for x
   x = 9,830,058.78/2,827.00
6. Step 6: Final answer
   x = 3,477.20