Finding the Fourth Proportional to 2,699.12, 3,724.58 and 1,520.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.12 : 3,724.58 = 1,520.17 : x
2. Step 2: Convert to fraction form
   2,699.12/3,724.58 = 1,520.17/x
3. Step 3: Cross multiply
   2,699.12x = 3,724.58 × 1,520.17
4. Step 4: Simplify right side
   2,699.12x = 5,661,989.27
5. Step 5: Solve for x
   x = 5,661,989.27/2,699.12
6. Step 6: Final answer
   x = 2,097.71