Finding the Fourth Proportional to 2,765.05, 3,820.62 and 2,210.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,765.05 : 3,820.62 = 2,210.09 : x
2. Step 2: Convert to fraction form
   2,765.05/3,820.62 = 2,210.09/x
3. Step 3: Cross multiply
   2,765.05x = 3,820.62 × 2,210.09
4. Step 4: Simplify right side
   2,765.05x = 8,443,923.61
5. Step 5: Solve for x
   x = 8,443,923.61/2,765.05
6. Step 6: Final answer
   x = 3,053.81