Finding the Fourth Proportional to 2,007.87, 2,770.77 and 1,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.87 : 2,770.77 = 1,123.50 : x
2. Step 2: Convert to fraction form
   2,007.87/2,770.77 = 1,123.50/x
3. Step 3: Cross multiply
   2,007.87x = 2,770.77 × 1,123.50
4. Step 4: Simplify right side
   2,007.87x = 3,112,960.10
5. Step 5: Solve for x
   x = 3,112,960.10/2,007.87
6. Step 6: Final answer
   x = 1,550.38