Finding the Fourth Proportional to 2,851.54, 3,932.49 and 2,188.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,851.54 : 3,932.49 = 2,188.42 : x
2. Step 2: Convert to fraction form
   2,851.54/3,932.49 = 2,188.42/x
3. Step 3: Cross multiply
   2,851.54x = 3,932.49 × 2,188.42
4. Step 4: Simplify right side
   2,851.54x = 8,605,939.77
5. Step 5: Solve for x
   x = 8,605,939.77/2,851.54
6. Step 6: Final answer
   x = 3,018.00