Finding the Fourth Proportional to 3,123.10, 4,309.98 and 1,725.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.10 : 4,309.98 = 1,725.82 : x
2. Step 2: Convert to fraction form
   3,123.10/4,309.98 = 1,725.82/x
3. Step 3: Cross multiply
   3,123.10x = 4,309.98 × 1,725.82
4. Step 4: Simplify right side
   3,123.10x = 7,438,249.68
5. Step 5: Solve for x
   x = 7,438,249.68/3,123.10
6. Step 6: Final answer
   x = 2,381.69