Finding the Fourth Proportional to 2,667.84, 3,996.32 and 2,176

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.84 : 3,996.32 = 2,176 : x
2. Step 2: Convert to fraction form
   2,667.84/3,996.32 = 2,176/x
3. Step 3: Cross multiply
   2,667.84x = 3,996.32 × 2,176
4. Step 4: Simplify right side
   2,667.84x = 8,695,992.32
5. Step 5: Solve for x
   x = 8,695,992.32/2,667.84
6. Step 6: Final answer
   x = 3,259.56