Finding the Fourth Proportional to 1,426.77, 1,968.84 and 837.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.77 : 1,968.84 = 837.23 : x
2. Step 2: Convert to fraction form
   1,426.77/1,968.84 = 837.23/x
3. Step 3: Cross multiply
   1,426.77x = 1,968.84 × 837.23
4. Step 4: Simplify right side
   1,426.77x = 1,648,362.07
5. Step 5: Solve for x
   x = 1,648,362.07/1,426.77
6. Step 6: Final answer
   x = 1,155.31