Finding the Fourth Proportional to 3,300.76, 4,928.51 and 2,813.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.76 : 4,928.51 = 2,813.56 : x
2. Step 2: Convert to fraction form
   3,300.76/4,928.51 = 2,813.56/x
3. Step 3: Cross multiply
   3,300.76x = 4,928.51 × 2,813.56
4. Step 4: Simplify right side
   3,300.76x = 13,866,658.60
5. Step 5: Solve for x
   x = 13,866,658.60/3,300.76
6. Step 6: Final answer
   x = 4,201.05