Finding the Fourth Proportional to 2,846.82, 3,928.09 and 2,101.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,846.82 : 3,928.09 = 2,101.42 : x
2. Step 2: Convert to fraction form
   2,846.82/3,928.09 = 2,101.42/x
3. Step 3: Cross multiply
   2,846.82x = 3,928.09 × 2,101.42
4. Step 4: Simplify right side
   2,846.82x = 8,254,566.89
5. Step 5: Solve for x
   x = 8,254,566.89/2,846.82
6. Step 6: Final answer
   x = 2,899.57