Finding the Fourth Proportional to 3,123.27, 4,309.61 and 1,725.75

Step by Step Solution

1. Step 1: Write the proportion equation
   3,123.27 : 4,309.61 = 1,725.75 : x
2. Step 2: Convert to fraction form
   3,123.27/4,309.61 = 1,725.75/x
3. Step 3: Cross multiply
   3,123.27x = 4,309.61 × 1,725.75
4. Step 4: Simplify right side
   3,123.27x = 7,437,300.83
5. Step 5: Solve for x
   x = 7,437,300.83/3,123.27
6. Step 6: Final answer
   x = 2,381.25