Finding the Fourth Proportional to 2,852.38, 4,278.72 and 904.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,852.38 : 4,278.72 = 904.73 : x
2. Step 2: Convert to fraction form
   2,852.38/4,278.72 = 904.73/x
3. Step 3: Cross multiply
   2,852.38x = 4,278.72 × 904.73
4. Step 4: Simplify right side
   2,852.38x = 3,871,086.35
5. Step 5: Solve for x
   x = 3,871,086.35/2,852.38
6. Step 6: Final answer
   x = 1,357.14