Finding the Fourth Proportional to 1,426.37, 1,967.87 and 836.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.37 : 1,967.87 = 836.69 : x
2. Step 2: Convert to fraction form
   1,426.37/1,967.87 = 836.69/x
3. Step 3: Cross multiply
   1,426.37x = 1,967.87 × 836.69
4. Step 4: Simplify right side
   1,426.37x = 1,646,492.97
5. Step 5: Solve for x
   x = 1,646,492.97/1,426.37
6. Step 6: Final answer
   x = 1,154.32