Finding the Fourth Proportional to 2,672.41, 3,687.67 and 1,553.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.41 : 3,687.67 = 1,553.34 : x
2. Step 2: Convert to fraction form
   2,672.41/3,687.67 = 1,553.34/x
3. Step 3: Cross multiply
   2,672.41x = 3,687.67 × 1,553.34
4. Step 4: Simplify right side
   2,672.41x = 5,728,190.76
5. Step 5: Solve for x
   x = 5,728,190.76/2,672.41
6. Step 6: Final answer
   x = 2,143.45