Finding the Fourth Proportional to 3,820.27, 5,272.22 and 2,141.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.27 : 5,272.22 = 2,141.78 : x
2. Step 2: Convert to fraction form
   3,820.27/5,272.22 = 2,141.78/x
3. Step 3: Cross multiply
   3,820.27x = 5,272.22 × 2,141.78
4. Step 4: Simplify right side
   3,820.27x = 11,291,924.64
5. Step 5: Solve for x
   x = 11,291,924.64/3,820.27
6. Step 6: Final answer
   x = 2,955.80