Finding the Fourth Proportional to 3,123.82, 4,309 and 2,061.22

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.82 : 4,309 = 2,061.22 : x
2. Step 2: Convert to fraction form
   3,123.82/4,309 = 2,061.22/x
3. Step 3: Cross multiply
   3,123.82x = 4,309 × 2,061.22
4. Step 4: Simplify right side
   3,123.82x = 8,881,796.98
5. Step 5: Solve for x
   x = 8,881,796.98/3,123.82
6. Step 6: Final answer
   x = 2,843.25