Finding the Fourth Proportional to 2,699.28, 3,724.10 and 1,520.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.28 : 3,724.10 = 1,520.10 : x
2. Step 2: Convert to fraction form
   2,699.28/3,724.10 = 1,520.10/x
3. Step 3: Cross multiply
   2,699.28x = 3,724.10 × 1,520.10
4. Step 4: Simplify right side
   2,699.28x = 5,661,004.41
5. Step 5: Solve for x
   x = 5,661,004.41/2,699.28
6. Step 6: Final answer
   x = 2,097.23