Finding the Fourth Proportional to 1,426.71, 1,968.23 and 836.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.71 : 1,968.23 = 836.98 : x
2. Step 2: Convert to fraction form
   1,426.71/1,968.23 = 836.98/x
3. Step 3: Cross multiply
   1,426.71x = 1,968.23 × 836.98
4. Step 4: Simplify right side
   1,426.71x = 1,647,364.22
5. Step 5: Solve for x
   x = 1,647,364.22/1,426.71
6. Step 6: Final answer
   x = 1,154.66