Finding the Fourth Proportional to 2,007.36, 2,770.21 and 1,123.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.36 : 2,770.21 = 1,123.16 : x
2. Step 2: Convert to fraction form
   2,007.36/2,770.21 = 1,123.16/x
3. Step 3: Cross multiply
   2,007.36x = 2,770.21 × 1,123.16
4. Step 4: Simplify right side
   2,007.36x = 3,111,389.06
5. Step 5: Solve for x
   x = 3,111,389.06/2,007.36
6. Step 6: Final answer
   x = 1,549.99