Finding the Fourth Proportional to 3,820.42, 5,272.16 and 2,141.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.42 : 5,272.16 = 2,141.82 : x
2. Step 2: Convert to fraction form
   3,820.42/5,272.16 = 2,141.82/x
3. Step 3: Cross multiply
   3,820.42x = 5,272.16 × 2,141.82
4. Step 4: Simplify right side
   3,820.42x = 11,292,007.02
5. Step 5: Solve for x
   x = 11,292,007.02/3,820.42
6. Step 6: Final answer
   x = 2,955.70