Finding the Fourth Proportional to 2,507.97, 3,457.59 and 1,668.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.97 : 3,457.59 = 1,668.72 : x
2. Step 2: Convert to fraction form
   2,507.97/3,457.59 = 1,668.72/x
3. Step 3: Cross multiply
   2,507.97x = 3,457.59 × 1,668.72
4. Step 4: Simplify right side
   2,507.97x = 5,769,749.58
5. Step 5: Solve for x
   x = 5,769,749.58/2,507.97
6. Step 6: Final answer
   x = 2,300.57