Finding the Fourth Proportional to 2,209.62, 3,313.34 and 1,235.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.62 : 3,313.34 = 1,235.46 : x
2. Step 2: Convert to fraction form
   2,209.62/3,313.34 = 1,235.46/x
3. Step 3: Cross multiply
   2,209.62x = 3,313.34 × 1,235.46
4. Step 4: Simplify right side
   2,209.62x = 4,093,499.04
5. Step 5: Solve for x
   x = 4,093,499.04/2,209.62
6. Step 6: Final answer
   x = 1,852.58