Finding the Fourth Proportional to 2,853.18, 3,932.82 and 2,153.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,853.18 : 3,932.82 = 2,153.34 : x
2. Step 2: Convert to fraction form
   2,853.18/3,932.82 = 2,153.34/x
3. Step 3: Cross multiply
   2,853.18x = 3,932.82 × 2,153.34
4. Step 4: Simplify right side
   2,853.18x = 8,468,698.62
5. Step 5: Solve for x
   x = 8,468,698.62/2,853.18
6. Step 6: Final answer
   x = 2,968.16