Finding the Fourth Proportional to 2,208.29, 3,047.25 and 1,213.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.29 : 3,047.25 = 1,213.57 : x
2. Step 2: Convert to fraction form
   2,208.29/3,047.25 = 1,213.57/x
3. Step 3: Cross multiply
   2,208.29x = 3,047.25 × 1,213.57
4. Step 4: Simplify right side
   2,208.29x = 3,698,051.18
5. Step 5: Solve for x
   x = 3,698,051.18/2,208.29
6. Step 6: Final answer
   x = 1,674.62