Finding the Fourth Proportional to 1,426.41, 2,138.55 and 962.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.41 : 2,138.55 = 962.89 : x
2. Step 2: Convert to fraction form
   1,426.41/2,138.55 = 962.89/x
3. Step 3: Cross multiply
   1,426.41x = 2,138.55 × 962.89
4. Step 4: Simplify right side
   1,426.41x = 2,059,184.87
5. Step 5: Solve for x
   x = 2,059,184.87/1,426.41
6. Step 6: Final answer
   x = 1,443.61