Finding the Fourth Proportional to 2,507.40, 3,459.42 and 1,445.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.40 : 3,459.42 = 1,445.02 : x
2. Step 2: Convert to fraction form
   2,507.40/3,459.42 = 1,445.02/x
3. Step 3: Cross multiply
   2,507.40x = 3,459.42 × 1,445.02
4. Step 4: Simplify right side
   2,507.40x = 4,998,919.16
5. Step 5: Solve for x
   x = 4,998,919.16/2,507.40
6. Step 6: Final answer
   x = 1,993.67