Finding the Fourth Proportional to 2,635.33, 3,953.55 and 904.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.33 : 3,953.55 = 904.09 : x
2. Step 2: Convert to fraction form
   2,635.33/3,953.55 = 904.09/x
3. Step 3: Cross multiply
   2,635.33x = 3,953.55 × 904.09
4. Step 4: Simplify right side
   2,635.33x = 3,574,365.02
5. Step 5: Solve for x
   x = 3,574,365.02/2,635.33
6. Step 6: Final answer
   x = 1,356.33