Finding the Fourth Proportional to 2,522.21, 3,783.38 and 1,206.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.21 : 3,783.38 = 1,206.09 : x
2. Step 2: Convert to fraction form
   2,522.21/3,783.38 = 1,206.09/x
3. Step 3: Cross multiply
   2,522.21x = 3,783.38 × 1,206.09
4. Step 4: Simplify right side
   2,522.21x = 4,563,090.75
5. Step 5: Solve for x
   x = 4,563,090.75/2,522.21
6. Step 6: Final answer
   x = 1,809.17