Finding the Fourth Proportional to 2,208.48, 3,047.72 and 1,213.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.48 : 3,047.72 = 1,213.73 : x
2. Step 2: Convert to fraction form
   2,208.48/3,047.72 = 1,213.73/x
3. Step 3: Cross multiply
   2,208.48x = 3,047.72 × 1,213.73
4. Step 4: Simplify right side
   2,208.48x = 3,699,109.20
5. Step 5: Solve for x
   x = 3,699,109.20/2,208.48
6. Step 6: Final answer
   x = 1,674.96