Finding the Fourth Proportional to 1,426.05, 1,968.03 and 836.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.05 : 1,968.03 = 836.63 : x
2. Step 2: Convert to fraction form
   1,426.05/1,968.03 = 836.63/x
3. Step 3: Cross multiply
   1,426.05x = 1,968.03 × 836.63
4. Step 4: Simplify right side
   1,426.05x = 1,646,512.94
5. Step 5: Solve for x
   x = 1,646,512.94/1,426.05
6. Step 6: Final answer
   x = 1,154.60