Finding the Fourth Proportional to 2,493.53, 3,440.78 and 1,431.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,493.53 : 3,440.78 = 1,431.01 : x
2. Step 2: Convert to fraction form
   2,493.53/3,440.78 = 1,431.01/x
3. Step 3: Cross multiply
   2,493.53x = 3,440.78 × 1,431.01
4. Step 4: Simplify right side
   2,493.53x = 4,923,773.38
5. Step 5: Solve for x
   x = 4,923,773.38/2,493.53
6. Step 6: Final answer
   x = 1,974.62