Finding the Fourth Proportional to 3,834.56, 5,291.60 and 2,156.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,834.56 : 5,291.60 = 2,156.04 : x
2. Step 2: Convert to fraction form
   3,834.56/5,291.60 = 2,156.04/x
3. Step 3: Cross multiply
   3,834.56x = 5,291.60 × 2,156.04
4. Step 4: Simplify right side
   3,834.56x = 11,408,890.48
5. Step 5: Solve for x
   x = 11,408,890.48/3,834.56
6. Step 6: Final answer
   x = 2,975.28