Finding the Fourth Proportional to 2,511.27, 3,767.40 and 867.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511.27 : 3,767.40 = 867.89 : x
2. Step 2: Convert to fraction form
   2,511.27/3,767.40 = 867.89/x
3. Step 3: Cross multiply
   2,511.27x = 3,767.40 × 867.89
4. Step 4: Simplify right side
   2,511.27x = 3,269,669.95
5. Step 5: Solve for x
   x = 3,269,669.95/2,511.27
6. Step 6: Final answer
   x = 1,302.00