Finding the Fourth Proportional to 2,859.12, 3,935.52 and 2,748.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,859.12 : 3,935.52 = 2,748.42 : x
2. Step 2: Convert to fraction form
   2,859.12/3,935.52 = 2,748.42/x
3. Step 3: Cross multiply
   2,859.12x = 3,935.52 × 2,748.42
4. Step 4: Simplify right side
   2,859.12x = 10,816,461.88
5. Step 5: Solve for x
   x = 10,816,461.88/2,859.12
6. Step 6: Final answer
   x = 3,783.14