Finding the Fourth Proportional to 2,815.52, 3,885.29 and 1,539.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815.52 : 3,885.29 = 1,539.37 : x
2. Step 2: Convert to fraction form
   2,815.52/3,885.29 = 1,539.37/x
3. Step 3: Cross multiply
   2,815.52x = 3,885.29 × 1,539.37
4. Step 4: Simplify right side
   2,815.52x = 5,980,896.34
5. Step 5: Solve for x
   x = 5,980,896.34/2,815.52
6. Step 6: Final answer
   x = 2,124.26