Finding the Fourth Proportional to 2,168.10, 3,249.05 and 1,672.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.10 : 3,249.05 = 1,672.79 : x
2. Step 2: Convert to fraction form
   2,168.10/3,249.05 = 1,672.79/x
3. Step 3: Cross multiply
   2,168.10x = 3,249.05 × 1,672.79
4. Step 4: Simplify right side
   2,168.10x = 5,434,953.74
5. Step 5: Solve for x
   x = 5,434,953.74/2,168.10
6. Step 6: Final answer
   x = 2,506.78