Finding the Fourth Proportional to 2,164.34, 3,245.70 and 1,707.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.34 : 3,245.70 = 1,707.50 : x
2. Step 2: Convert to fraction form
   2,164.34/3,245.70 = 1,707.50/x
3. Step 3: Cross multiply
   2,164.34x = 3,245.70 × 1,707.50
4. Step 4: Simplify right side
   2,164.34x = 5,542,047.27
5. Step 5: Solve for x
   x = 5,542,047.27/2,164.34
6. Step 6: Final answer
   x = 2,560.61