Finding the Fourth Proportional to 3,820.17, 5,271.89 and 2,141.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,820.17 : 5,271.89 = 2,141.94 : x
2. Step 2: Convert to fraction form
   3,820.17/5,271.89 = 2,141.94/x
3. Step 3: Cross multiply
   3,820.17x = 5,271.89 × 2,141.94
4. Step 4: Simplify right side
   3,820.17x = 11,292,061.36
5. Step 5: Solve for x
   x = 11,292,061.36/3,820.17
6. Step 6: Final answer
   x = 2,955.91