Finding the Fourth Proportional to 9,258.80, 13,890.47 and 2,684.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,258.80 : 13,890.47 = 2,684.89 : x
2. Step 2: Convert to fraction form
   9,258.80/13,890.47 = 2,684.89/x
3. Step 3: Cross multiply
   9,258.80x = 13,890.47 × 2,684.89
4. Step 4: Simplify right side
   9,258.80x = 37,294,324.91
5. Step 5: Solve for x
   x = 37,294,324.91/9,258.80
6. Step 6: Final answer
   x = 4,027.99