Finding the Fourth Proportional to 3,789.52, 5,678.52 and 2,811.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.52 : 5,678.52 = 2,811.04 : x
2. Step 2: Convert to fraction form
   3,789.52/5,678.52 = 2,811.04/x
3. Step 3: Cross multiply
   3,789.52x = 5,678.52 × 2,811.04
4. Step 4: Simplify right side
   3,789.52x = 15,962,546.86
5. Step 5: Solve for x
   x = 15,962,546.86/3,789.52
6. Step 6: Final answer
   x = 4,212.29