Finding the Fourth Proportional to 1,424.39, 1,962.74 and 1,050.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,424.39 : 1,962.74 = 1,050.78 : x
2. Step 2: Convert to fraction form
   1,424.39/1,962.74 = 1,050.78/x
3. Step 3: Cross multiply
   1,424.39x = 1,962.74 × 1,050.78
4. Step 4: Simplify right side
   1,424.39x = 2,062,398.12
5. Step 5: Solve for x
   x = 2,062,398.12/1,424.39
6. Step 6: Final answer
   x = 1,447.92