Finding the Fourth Proportional to 2,701.72, 4,052.23 and 853.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,701.72 : 4,052.23 = 853.02 : x
2. Step 2: Convert to fraction form
   2,701.72/4,052.23 = 853.02/x
3. Step 3: Cross multiply
   2,701.72x = 4,052.23 × 853.02
4. Step 4: Simplify right side
   2,701.72x = 3,456,633.23
5. Step 5: Solve for x
   x = 3,456,633.23/2,701.72
6. Step 6: Final answer
   x = 1,279.42