Finding the Fourth Proportional to 3,300.36, 4,947.30 and 2,807.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,300.36 : 4,947.30 = 2,807.88 : x
2. Step 2: Convert to fraction form
   3,300.36/4,947.30 = 2,807.88/x
3. Step 3: Cross multiply
   3,300.36x = 4,947.30 × 2,807.88
4. Step 4: Simplify right side
   3,300.36x = 13,891,424.72
5. Step 5: Solve for x
   x = 13,891,424.72/3,300.36
6. Step 6: Final answer
   x = 4,209.06