Finding the Fourth Proportional to 2,853.55, 3,939.76 and 2,554.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,853.55 : 3,939.76 = 2,554.29 : x
2. Step 2: Convert to fraction form
   2,853.55/3,939.76 = 2,554.29/x
3. Step 3: Cross multiply
   2,853.55x = 3,939.76 × 2,554.29
4. Step 4: Simplify right side
   2,853.55x = 10,063,289.57
5. Step 5: Solve for x
   x = 10,063,289.57/2,853.55
6. Step 6: Final answer
   x = 3,526.59