Finding the Fourth Proportional to 2,769.86, 3,820.56 and 2,209.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,769.86 : 3,820.56 = 2,209.34 : x
2. Step 2: Convert to fraction form
   2,769.86/3,820.56 = 2,209.34/x
3. Step 3: Cross multiply
   2,769.86x = 3,820.56 × 2,209.34
4. Step 4: Simplify right side
   2,769.86x = 8,440,916.03
5. Step 5: Solve for x
   x = 8,440,916.03/2,769.86
6. Step 6: Final answer
   x = 3,047.42