Finding the Fourth Proportional to 2,487.09, 3,728.61 and 2,069.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,487.09 : 3,728.61 = 2,069.54 : x
2. Step 2: Convert to fraction form
   2,487.09/3,728.61 = 2,069.54/x
3. Step 3: Cross multiply
   2,487.09x = 3,728.61 × 2,069.54
4. Step 4: Simplify right side
   2,487.09x = 7,716,507.54
5. Step 5: Solve for x
   x = 7,716,507.54/2,487.09
6. Step 6: Final answer
   x = 3,102.62