Finding the Fourth Proportional to 1,425.11, 1,966.59 and 836.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.11 : 1,966.59 = 836.03 : x
2. Step 2: Convert to fraction form
   1,425.11/1,966.59 = 836.03/x
3. Step 3: Cross multiply
   1,425.11x = 1,966.59 × 836.03
4. Step 4: Simplify right side
   1,425.11x = 1,644,118.40
5. Step 5: Solve for x
   x = 1,644,118.40/1,425.11
6. Step 6: Final answer
   x = 1,153.68