Finding the Fourth Proportional to 4,807.76, 7,210.72 and 1,520.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,807.76 : 7,210.72 = 1,520.88 : x
2. Step 2: Convert to fraction form
   4,807.76/7,210.72 = 1,520.88/x
3. Step 3: Cross multiply
   4,807.76x = 7,210.72 × 1,520.88
4. Step 4: Simplify right side
   4,807.76x = 10,966,614.69
5. Step 5: Solve for x
   x = 10,966,614.69/4,807.76
6. Step 6: Final answer
   x = 2,281.03