Finding the Fourth Proportional to 3,123.09, 4,309.42 and 1,796.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.09 : 4,309.42 = 1,796.31 : x
2. Step 2: Convert to fraction form
   3,123.09/4,309.42 = 1,796.31/x
3. Step 3: Cross multiply
   3,123.09x = 4,309.42 × 1,796.31
4. Step 4: Simplify right side
   3,123.09x = 7,741,054.24
5. Step 5: Solve for x
   x = 7,741,054.24/3,123.09
6. Step 6: Final answer
   x = 2,478.65