Finding the Fourth Proportional to 1,081.77, 1,622.48 and 301.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.77 : 1,622.48 = 301.69 : x
2. Step 2: Convert to fraction form
   1,081.77/1,622.48 = 301.69/x
3. Step 3: Cross multiply
   1,081.77x = 1,622.48 × 301.69
4. Step 4: Simplify right side
   1,081.77x = 489,477.38
5. Step 5: Solve for x
   x = 489,477.38/1,081.77
6. Step 6: Final answer
   x = 452.48