Finding the Fourth Proportional to 1,425.17, 1,966.01 and 835.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.17 : 1,966.01 = 835.31 : x
2. Step 2: Convert to fraction form
   1,425.17/1,966.01 = 835.31/x
3. Step 3: Cross multiply
   1,425.17x = 1,966.01 × 835.31
4. Step 4: Simplify right side
   1,425.17x = 1,642,228.55
5. Step 5: Solve for x
   x = 1,642,228.55/1,425.17
6. Step 6: Final answer
   x = 1,152.30