Finding the Fourth Proportional to 2,784.87, 3,813.75 and 2,748.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,784.87 : 3,813.75 = 2,748.42 : x
2. Step 2: Convert to fraction form
   2,784.87/3,813.75 = 2,748.42/x
3. Step 3: Cross multiply
   2,784.87x = 3,813.75 × 2,748.42
4. Step 4: Simplify right side
   2,784.87x = 10,481,786.78
5. Step 5: Solve for x
   x = 10,481,786.78/2,784.87
6. Step 6: Final answer
   x = 3,763.83