Finding the Fourth Proportional to 2,269.89, 3,402.54 and 808.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.89 : 3,402.54 = 808.25 : x
2. Step 2: Convert to fraction form
   2,269.89/3,402.54 = 808.25/x
3. Step 3: Cross multiply
   2,269.89x = 3,402.54 × 808.25
4. Step 4: Simplify right side
   2,269.89x = 2,750,085.94
5. Step 5: Solve for x
   x = 2,750,085.94/2,269.89
6. Step 6: Final answer
   x = 1,211.55