Finding the Fourth Proportional to 2,809.50, 4,211.34 and 1,167

Step by Step Solution

1. Step 1: Write the proportion equation
   2,809.50 : 4,211.34 = 1,167 : x
2. Step 2: Convert to fraction form
   2,809.50/4,211.34 = 1,167/x
3. Step 3: Cross multiply
   2,809.50x = 4,211.34 × 1,167
4. Step 4: Simplify right side
   2,809.50x = 4,914,633.78
5. Step 5: Solve for x
   x = 4,914,633.78/2,809.50
6. Step 6: Final answer
   x = 1,749.29