Finding the Fourth Proportional to 2,699.18, 3,724.88 and 1,520.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,699.18 : 3,724.88 = 1,520.28 : x
2. Step 2: Convert to fraction form
   2,699.18/3,724.88 = 1,520.28/x
3. Step 3: Cross multiply
   2,699.18x = 3,724.88 × 1,520.28
4. Step 4: Simplify right side
   2,699.18x = 5,662,860.57
5. Step 5: Solve for x
   x = 5,662,860.57/2,699.18
6. Step 6: Final answer
   x = 2,097.99