Finding the Fourth Proportional to 2,716.37, 4,074.86 and 867.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,716.37 : 4,074.86 = 867.05 : x
2. Step 2: Convert to fraction form
   2,716.37/4,074.86 = 867.05/x
3. Step 3: Cross multiply
   2,716.37x = 4,074.86 × 867.05
4. Step 4: Simplify right side
   2,716.37x = 3,533,113.21
5. Step 5: Solve for x
   x = 3,533,113.21/2,716.37
6. Step 6: Final answer
   x = 1,300.67