Finding the Fourth Proportional to 2,807.54, 4,211.37 and 727.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,807.54 : 4,211.37 = 727.57 : x
2. Step 2: Convert to fraction form
   2,807.54/4,211.37 = 727.57/x
3. Step 3: Cross multiply
   2,807.54x = 4,211.37 × 727.57
4. Step 4: Simplify right side
   2,807.54x = 3,064,066.47
5. Step 5: Solve for x
   x = 3,064,066.47/2,807.54
6. Step 6: Final answer
   x = 1,091.37