Finding the Fourth Proportional to 2,699.06, 3,724.72 and 1,520.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.06 : 3,724.72 = 1,520.15 : x
2. Step 2: Convert to fraction form
   2,699.06/3,724.72 = 1,520.15/x
3. Step 3: Cross multiply
   2,699.06x = 3,724.72 × 1,520.15
4. Step 4: Simplify right side
   2,699.06x = 5,662,138.62
5. Step 5: Solve for x
   x = 5,662,138.62/2,699.06
6. Step 6: Final answer
   x = 2,097.82