Finding the Fourth Proportional to 3,834.04, 5,290.86 and 2,155.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,834.04 : 5,290.86 = 2,155.46 : x
2. Step 2: Convert to fraction form
   3,834.04/5,290.86 = 2,155.46/x
3. Step 3: Cross multiply
   3,834.04x = 5,290.86 × 2,155.46
4. Step 4: Simplify right side
   3,834.04x = 11,404,237.10
5. Step 5: Solve for x
   x = 11,404,237.10/3,834.04
6. Step 6: Final answer
   x = 2,974.47