Finding the Fourth Proportional to 2,493.94, 3,440.67 and 1,431.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,493.94 : 3,440.67 = 1,431.32 : x
2. Step 2: Convert to fraction form
   2,493.94/3,440.67 = 1,431.32/x
3. Step 3: Cross multiply
   2,493.94x = 3,440.67 × 1,431.32
4. Step 4: Simplify right side
   2,493.94x = 4,924,699.78
5. Step 5: Solve for x
   x = 4,924,699.78/2,493.94
6. Step 6: Final answer
   x = 1,974.67