Finding the Fourth Proportional to 1,081.83, 1,622.37 and 351.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.83 : 1,622.37 = 351.23 : x
2. Step 2: Convert to fraction form
   1,081.83/1,622.37 = 351.23/x
3. Step 3: Cross multiply
   1,081.83x = 1,622.37 × 351.23
4. Step 4: Simplify right side
   1,081.83x = 569,825.02
5. Step 5: Solve for x
   x = 569,825.02/1,081.83
6. Step 6: Final answer
   x = 526.72