Finding the Fourth Proportional to 2,507.35, 3,458.43 and 1,720.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.35 : 3,458.43 = 1,720.03 : x
2. Step 2: Convert to fraction form
   2,507.35/3,458.43 = 1,720.03/x
3. Step 3: Cross multiply
   2,507.35x = 3,458.43 × 1,720.03
4. Step 4: Simplify right side
   2,507.35x = 5,948,603.35
5. Step 5: Solve for x
   x = 5,948,603.35/2,507.35
6. Step 6: Final answer
   x = 2,372.47