Finding the Fourth Proportional to 2,269.89, 3,402.59 and 1,081.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.89 : 3,402.59 = 1,081.85 : x
2. Step 2: Convert to fraction form
   2,269.89/3,402.59 = 1,081.85/x
3. Step 3: Cross multiply
   2,269.89x = 3,402.59 × 1,081.85
4. Step 4: Simplify right side
   2,269.89x = 3,681,069.57
5. Step 5: Solve for x
   x = 3,681,069.57/2,269.89
6. Step 6: Final answer
   x = 1,621.70