Finding the Fourth Proportional to 1,425.83, 1,967.82 and 836.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.83 : 1,967.82 = 836.42 : x
2. Step 2: Convert to fraction form
   1,425.83/1,967.82 = 836.42/x
3. Step 3: Cross multiply
   1,425.83x = 1,967.82 × 836.42
4. Step 4: Simplify right side
   1,425.83x = 1,645,914.17
5. Step 5: Solve for x
   x = 1,645,914.17/1,425.83
6. Step 6: Final answer
   x = 1,154.36