Finding the Fourth Proportional to 2,008.21, 2,771.39 and 1,123.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,008.21 : 2,771.39 = 1,123.99 : x
2. Step 2: Convert to fraction form
   2,008.21/2,771.39 = 1,123.99/x
3. Step 3: Cross multiply
   2,008.21x = 2,771.39 × 1,123.99
4. Step 4: Simplify right side
   2,008.21x = 3,115,002.10
5. Step 5: Solve for x
   x = 3,115,002.10/2,008.21
6. Step 6: Final answer
   x = 1,551.14