Finding the Fourth Proportional to 1,425.02, 1,966.72 and 836.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.02 : 1,966.72 = 836.06 : x
2. Step 2: Convert to fraction form
   1,425.02/1,966.72 = 836.06/x
3. Step 3: Cross multiply
   1,425.02x = 1,966.72 × 836.06
4. Step 4: Simplify right side
   1,425.02x = 1,644,295.92
5. Step 5: Solve for x
   x = 1,644,295.92/1,425.02
6. Step 6: Final answer
   x = 1,153.88