Finding the Fourth Proportional to 2,849.16, 3,928.05 and 2,557.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,849.16 : 3,928.05 = 2,557.56 : x
2. Step 2: Convert to fraction form
   2,849.16/3,928.05 = 2,557.56/x
3. Step 3: Cross multiply
   2,849.16x = 3,928.05 × 2,557.56
4. Step 4: Simplify right side
   2,849.16x = 10,046,223.56
5. Step 5: Solve for x
   x = 10,046,223.56/2,849.16
6. Step 6: Final answer
   x = 3,526.03