Finding the Fourth Proportional to 2,439.89, 3,660.38 and 1,343.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.89 : 3,660.38 = 1,343.69 : x
2. Step 2: Convert to fraction form
   2,439.89/3,660.38 = 1,343.69/x
3. Step 3: Cross multiply
   2,439.89x = 3,660.38 × 1,343.69
4. Step 4: Simplify right side
   2,439.89x = 4,918,416.00
5. Step 5: Solve for x
   x = 4,918,416.00/2,439.89
6. Step 6: Final answer
   x = 2,015.84