Finding the Fourth Proportional to 2,667.92, 3,681.56 and 1,489

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.92 : 3,681.56 = 1,489 : x
2. Step 2: Convert to fraction form
   2,667.92/3,681.56 = 1,489/x
3. Step 3: Cross multiply
   2,667.92x = 3,681.56 × 1,489
4. Step 4: Simplify right side
   2,667.92x = 5,481,842.84
5. Step 5: Solve for x
   x = 5,481,842.84/2,667.92
6. Step 6: Final answer
   x = 2,054.73