Finding the Fourth Proportional to 2,208.35, 3,047.46 and 1,213.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.35 : 3,047.46 = 1,213.62 : x
2. Step 2: Convert to fraction form
   2,208.35/3,047.46 = 1,213.62/x
3. Step 3: Cross multiply
   2,208.35x = 3,047.46 × 1,213.62
4. Step 4: Simplify right side
   2,208.35x = 3,698,458.41
5. Step 5: Solve for x
   x = 3,698,458.41/2,208.35
6. Step 6: Final answer
   x = 1,674.76