Finding the Fourth Proportional to 2,493.40, 3,441.42 and 1,431.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,493.40 : 3,441.42 = 1,431.34 : x
2. Step 2: Convert to fraction form
   2,493.40/3,441.42 = 1,431.34/x
3. Step 3: Cross multiply
   2,493.40x = 3,441.42 × 1,431.34
4. Step 4: Simplify right side
   2,493.40x = 4,925,842.10
5. Step 5: Solve for x
   x = 4,925,842.10/2,493.40
6. Step 6: Final answer
   x = 1,975.55