Finding the Fourth Proportional to 3,789.89, 5,681.99 and 2,553.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.89 : 5,681.99 = 2,553.83 : x
2. Step 2: Convert to fraction form
   3,789.89/5,681.99 = 2,553.83/x
3. Step 3: Cross multiply
   3,789.89x = 5,681.99 × 2,553.83
4. Step 4: Simplify right side
   3,789.89x = 14,510,836.52
5. Step 5: Solve for x
   x = 14,510,836.52/3,789.89
6. Step 6: Final answer
   x = 3,828.83