Finding the Fourth Proportional to 2,673.28, 3,689.61 and 1,554.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.28 : 3,689.61 = 1,554.13 : x
2. Step 2: Convert to fraction form
   2,673.28/3,689.61 = 1,554.13/x
3. Step 3: Cross multiply
   2,673.28x = 3,689.61 × 1,554.13
4. Step 4: Simplify right side
   2,673.28x = 5,734,133.59
5. Step 5: Solve for x
   x = 5,734,133.59/2,673.28
6. Step 6: Final answer
   x = 2,144.98