Finding the Fourth Proportional to 2,493.81, 3,440.28 and 1,445.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,493.81 : 3,440.28 = 1,445.25 : x
2. Step 2: Convert to fraction form
   2,493.81/3,440.28 = 1,445.25/x
3. Step 3: Cross multiply
   2,493.81x = 3,440.28 × 1,445.25
4. Step 4: Simplify right side
   2,493.81x = 4,972,064.67
5. Step 5: Solve for x
   x = 4,972,064.67/2,493.81
6. Step 6: Final answer
   x = 1,993.76