Finding the Fourth Proportional to 2,353.33, 3,527.83 and 813.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,353.33 : 3,527.83 = 813.25 : x
2. Step 2: Convert to fraction form
   2,353.33/3,527.83 = 813.25/x
3. Step 3: Cross multiply
   2,353.33x = 3,527.83 × 813.25
4. Step 4: Simplify right side
   2,353.33x = 2,869,007.75
5. Step 5: Solve for x
   x = 2,869,007.75/2,353.33
6. Step 6: Final answer
   x = 1,219.13