Finding the Fourth Proportional to 2,531.78, 3,493.73 and 1,412.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,531.78 : 3,493.73 = 1,412.68 : x
2. Step 2: Convert to fraction form
   2,531.78/3,493.73 = 1,412.68/x
3. Step 3: Cross multiply
   2,531.78x = 3,493.73 × 1,412.68
4. Step 4: Simplify right side
   2,531.78x = 4,935,522.50
5. Step 5: Solve for x
   x = 4,935,522.50/2,531.78
6. Step 6: Final answer
   x = 1,949.43