Finding the Fourth Proportional to 2,553.31, 3,829.02 and 909.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.31 : 3,829.02 = 909.42 : x
2. Step 2: Convert to fraction form
   2,553.31/3,829.02 = 909.42/x
3. Step 3: Cross multiply
   2,553.31x = 3,829.02 × 909.42
4. Step 4: Simplify right side
   2,553.31x = 3,482,187.37
5. Step 5: Solve for x
   x = 3,482,187.37/2,553.31
6. Step 6: Final answer
   x = 1,363.79