Finding the Fourth Proportional to 2,667.82, 3,998.95 and 1,108.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.82 : 3,998.95 = 1,108.67 : x
2. Step 2: Convert to fraction form
   2,667.82/3,998.95 = 1,108.67/x
3. Step 3: Cross multiply
   2,667.82x = 3,998.95 × 1,108.67
4. Step 4: Simplify right side
   2,667.82x = 4,433,495.90
5. Step 5: Solve for x
   x = 4,433,495.90/2,667.82
6. Step 6: Final answer
   x = 1,661.85