Finding the Fourth Proportional to 2,419.40, 3,625.74 and 1,118.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.40 : 3,625.74 = 1,118.12 : x
2. Step 2: Convert to fraction form
   2,419.40/3,625.74 = 1,118.12/x
3. Step 3: Cross multiply
   2,419.40x = 3,625.74 × 1,118.12
4. Step 4: Simplify right side
   2,419.40x = 4,054,012.41
5. Step 5: Solve for x
   x = 4,054,012.41/2,419.40
6. Step 6: Final answer
   x = 1,675.63