Finding the Fourth Proportional to 2,511.33, 3,766.28 and 867.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,511.33 : 3,766.28 = 867.45 : x
2. Step 2: Convert to fraction form
   2,511.33/3,766.28 = 867.45/x
3. Step 3: Cross multiply
   2,511.33x = 3,766.28 × 867.45
4. Step 4: Simplify right side
   2,511.33x = 3,267,055.25
5. Step 5: Solve for x
   x = 3,267,055.25/2,511.33
6. Step 6: Final answer
   x = 1,300.93