Finding the Fourth Proportional to 2,554.34, 3,521.76 and 1,668.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,554.34 : 3,521.76 = 1,668.74 : x
2. Step 2: Convert to fraction form
   2,554.34/3,521.76 = 1,668.74/x
3. Step 3: Cross multiply
   2,554.34x = 3,521.76 × 1,668.74
4. Step 4: Simplify right side
   2,554.34x = 5,876,901.78
5. Step 5: Solve for x
   x = 5,876,901.78/2,554.34
6. Step 6: Final answer
   x = 2,300.75