Finding the Fourth Proportional to 2,208.24, 3,047.40 and 1,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.24 : 3,047.40 = 1,213.50 : x
2. Step 2: Convert to fraction form
   2,208.24/3,047.40 = 1,213.50/x
3. Step 3: Cross multiply
   2,208.24x = 3,047.40 × 1,213.50
4. Step 4: Simplify right side
   2,208.24x = 3,698,019.90
5. Step 5: Solve for x
   x = 3,698,019.90/2,208.24
6. Step 6: Final answer
   x = 1,674.65