Finding the Fourth Proportional to 2,157.75, 3,238.25 and 1,730.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,157.75 : 3,238.25 = 1,730.07 : x
2. Step 2: Convert to fraction form
   2,157.75/3,238.25 = 1,730.07/x
3. Step 3: Cross multiply
   2,157.75x = 3,238.25 × 1,730.07
4. Step 4: Simplify right side
   2,157.75x = 5,602,399.18
5. Step 5: Solve for x
   x = 5,602,399.18/2,157.75
6. Step 6: Final answer
   x = 2,596.41