Finding the Fourth Proportional to 1,081.55, 1,622.39 and 341.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.55 : 1,622.39 = 341.27 : x
2. Step 2: Convert to fraction form
   1,081.55/1,622.39 = 341.27/x
3. Step 3: Cross multiply
   1,081.55x = 1,622.39 × 341.27
4. Step 4: Simplify right side
   1,081.55x = 553,663.22
5. Step 5: Solve for x
   x = 553,663.22/1,081.55
6. Step 6: Final answer
   x = 511.92