Finding the Fourth Proportional to 2,947.41, 4,420.31 and 867.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.41 : 4,420.31 = 867.33 : x
2. Step 2: Convert to fraction form
   2,947.41/4,420.31 = 867.33/x
3. Step 3: Cross multiply
   2,947.41x = 4,420.31 × 867.33
4. Step 4: Simplify right side
   2,947.41x = 3,833,863.14
5. Step 5: Solve for x
   x = 3,833,863.14/2,947.41
6. Step 6: Final answer
   x = 1,300.76