Finding the Fourth Proportional to 3,916.16, 5,871.72 and 1,725.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.16 : 5,871.72 = 1,725.92 : x
2. Step 2: Convert to fraction form
   3,916.16/5,871.72 = 1,725.92/x
3. Step 3: Cross multiply
   3,916.16x = 5,871.72 × 1,725.92
4. Step 4: Simplify right side
   3,916.16x = 10,134,118.98
5. Step 5: Solve for x
   x = 10,134,118.98/3,916.16
6. Step 6: Final answer
   x = 2,587.77