Finding the Fourth Proportional to 2,727.37, 4,090.91 and 878.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,727.37 : 4,090.91 = 878.04 : x
2. Step 2: Convert to fraction form
   2,727.37/4,090.91 = 878.04/x
3. Step 3: Cross multiply
   2,727.37x = 4,090.91 × 878.04
4. Step 4: Simplify right side
   2,727.37x = 3,591,978.23
5. Step 5: Solve for x
   x = 3,591,978.23/2,727.37
6. Step 6: Final answer
   x = 1,317.01