Finding the Fourth Proportional to 2,287.35, 3,427.94 and 1,668.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.35 : 3,427.94 = 1,668.15 : x
2. Step 2: Convert to fraction form
   2,287.35/3,427.94 = 1,668.15/x
3. Step 3: Cross multiply
   2,287.35x = 3,427.94 × 1,668.15
4. Step 4: Simplify right side
   2,287.35x = 5,718,309.77
5. Step 5: Solve for x
   x = 5,718,309.77/2,287.35
6. Step 6: Final answer
   x = 2,499.97