Finding the Fourth Proportional to 3,820.57, 5,272.09 and 2,141.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.57 : 5,272.09 = 2,141.94 : x
2. Step 2: Convert to fraction form
   3,820.57/5,272.09 = 2,141.94/x
3. Step 3: Cross multiply
   3,820.57x = 5,272.09 × 2,141.94
4. Step 4: Simplify right side
   3,820.57x = 11,292,500.45
5. Step 5: Solve for x
   x = 11,292,500.45/3,820.57
6. Step 6: Final answer
   x = 2,955.71