Finding the Fourth Proportional to 2,777.27, 4,166.31 and 902.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,777.27 : 4,166.31 = 902.54 : x
2. Step 2: Convert to fraction form
   2,777.27/4,166.31 = 902.54/x
3. Step 3: Cross multiply
   2,777.27x = 4,166.31 × 902.54
4. Step 4: Simplify right side
   2,777.27x = 3,760,261.43
5. Step 5: Solve for x
   x = 3,760,261.43/2,777.27
6. Step 6: Final answer
   x = 1,353.94