Finding the Fourth Proportional to 1,668.96, 2,498.52 and 1,597.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668.96 : 2,498.52 = 1,597.68 : x
2. Step 2: Convert to fraction form
   1,668.96/2,498.52 = 1,597.68/x
3. Step 3: Cross multiply
   1,668.96x = 2,498.52 × 1,597.68
4. Step 4: Simplify right side
   1,668.96x = 3,991,835.43
5. Step 5: Solve for x
   x = 3,991,835.43/1,668.96
6. Step 6: Final answer
   x = 2,391.81