Finding the Fourth Proportional to 1,109.49, 1,662.72 and 835.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109.49 : 1,662.72 = 835.26 : x
2. Step 2: Convert to fraction form
   1,109.49/1,662.72 = 835.26/x
3. Step 3: Cross multiply
   1,109.49x = 1,662.72 × 835.26
4. Step 4: Simplify right side
   1,109.49x = 1,388,803.51
5. Step 5: Solve for x
   x = 1,388,803.51/1,109.49
6. Step 6: Final answer
   x = 1,251.75