Finding the Fourth Proportional to 1,668.79, 2,301.53 and 1,250.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,668.79 : 2,301.53 = 1,250.12 : x
2. Step 2: Convert to fraction form
   1,668.79/2,301.53 = 1,250.12/x
3. Step 3: Cross multiply
   1,668.79x = 2,301.53 × 1,250.12
4. Step 4: Simplify right side
   1,668.79x = 2,877,182.43
5. Step 5: Solve for x
   x = 2,877,182.43/1,668.79
6. Step 6: Final answer
   x = 1,724.12