Finding the Fourth Proportional to 2,211.72, 3,052.21 and 1,267.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211.72 : 3,052.21 = 1,267.59 : x
2. Step 2: Convert to fraction form
   2,211.72/3,052.21 = 1,267.59/x
3. Step 3: Cross multiply
   2,211.72x = 3,052.21 × 1,267.59
4. Step 4: Simplify right side
   2,211.72x = 3,868,963.90
5. Step 5: Solve for x
   x = 3,868,963.90/2,211.72
6. Step 6: Final answer
   x = 1,749.30