Finding the Fourth Proportional to 2,208.72, 3,312.83 and 1,384.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.72 : 3,312.83 = 1,384.48 : x
2. Step 2: Convert to fraction form
   2,208.72/3,312.83 = 1,384.48/x
3. Step 3: Cross multiply
   2,208.72x = 3,312.83 × 1,384.48
4. Step 4: Simplify right side
   2,208.72x = 4,586,554.48
5. Step 5: Solve for x
   x = 4,586,554.48/2,208.72
6. Step 6: Final answer
   x = 2,076.56