Finding the Fourth Proportional to 2,688.42, 3,710.10 and 1,509.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.42 : 3,710.10 = 1,509.42 : x
2. Step 2: Convert to fraction form
   2,688.42/3,710.10 = 1,509.42/x
3. Step 3: Cross multiply
   2,688.42x = 3,710.10 × 1,509.42
4. Step 4: Simplify right side
   2,688.42x = 5,600,099.14
5. Step 5: Solve for x
   x = 5,600,099.14/2,688.42
6. Step 6: Final answer
   x = 2,083.04