Finding the Fourth Proportional to 1,426.78, 2,137.02 and 877.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.78 : 2,137.02 = 877.32 : x
2. Step 2: Convert to fraction form
   1,426.78/2,137.02 = 877.32/x
3. Step 3: Cross multiply
   1,426.78x = 2,137.02 × 877.32
4. Step 4: Simplify right side
   1,426.78x = 1,874,850.39
5. Step 5: Solve for x
   x = 1,874,850.39/1,426.78
6. Step 6: Final answer
   x = 1,314.04