Finding the Fourth Proportional to 3,617.20, 5,425.76 and 1,862.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,617.20 : 5,425.76 = 1,862.69 : x
2. Step 2: Convert to fraction form
   3,617.20/5,425.76 = 1,862.69/x
3. Step 3: Cross multiply
   3,617.20x = 5,425.76 × 1,862.69
4. Step 4: Simplify right side
   3,617.20x = 10,106,508.89
5. Step 5: Solve for x
   x = 10,106,508.89/3,617.20
6. Step 6: Final answer
   x = 2,794.01