Finding the Fourth Proportional to 2,191.50, 3,283.81 and 1,267.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.50 : 3,283.81 = 1,267.49 : x
2. Step 2: Convert to fraction form
   2,191.50/3,283.81 = 1,267.49/x
3. Step 3: Cross multiply
   2,191.50x = 3,283.81 × 1,267.49
4. Step 4: Simplify right side
   2,191.50x = 4,162,196.34
5. Step 5: Solve for x
   x = 4,162,196.34/2,191.50
6. Step 6: Final answer
   x = 1,899.25