Finding the Fourth Proportional to 1,348.71, 2,019.42 and 1,074.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.71 : 2,019.42 = 1,074.12 : x
2. Step 2: Convert to fraction form
   1,348.71/2,019.42 = 1,074.12/x
3. Step 3: Cross multiply
   1,348.71x = 2,019.42 × 1,074.12
4. Step 4: Simplify right side
   1,348.71x = 2,169,099.41
5. Step 5: Solve for x
   x = 2,169,099.41/1,348.71
6. Step 6: Final answer
   x = 1,608.28