Finding the Fourth Proportional to 2,007.05, 2,769.71 and 1,122.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.05 : 2,769.71 = 1,122.89 : x
2. Step 2: Convert to fraction form
   2,007.05/2,769.71 = 1,122.89/x
3. Step 3: Cross multiply
   2,007.05x = 2,769.71 × 1,122.89
4. Step 4: Simplify right side
   2,007.05x = 3,110,060.20
5. Step 5: Solve for x
   x = 3,110,060.20/2,007.05
6. Step 6: Final answer
   x = 1,549.57