Finding the Fourth Proportional to 2,727.33, 4,091.52 and 878.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,727.33 : 4,091.52 = 878.91 : x
2. Step 2: Convert to fraction form
   2,727.33/4,091.52 = 878.91/x
3. Step 3: Cross multiply
   2,727.33x = 4,091.52 × 878.91
4. Step 4: Simplify right side
   2,727.33x = 3,596,077.84
5. Step 5: Solve for x
   x = 3,596,077.84/2,727.33
6. Step 6: Final answer
   x = 1,318.53