Finding the Fourth Proportional to 1,667.12, 2,491.92 and 1,632.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.12 : 2,491.92 = 1,632.56 : x
2. Step 2: Convert to fraction form
   1,667.12/2,491.92 = 1,632.56/x
3. Step 3: Cross multiply
   1,667.12x = 2,491.92 × 1,632.56
4. Step 4: Simplify right side
   1,667.12x = 4,068,208.92
5. Step 5: Solve for x
   x = 4,068,208.92/1,667.12
6. Step 6: Final answer
   x = 2,440.26