Finding the Fourth Proportional to 2,007.86, 2,770.86 and 1,123.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.86 : 2,770.86 = 1,123.68 : x
2. Step 2: Convert to fraction form
   2,007.86/2,770.86 = 1,123.68/x
3. Step 3: Cross multiply
   2,007.86x = 2,770.86 × 1,123.68
4. Step 4: Simplify right side
   2,007.86x = 3,113,559.96
5. Step 5: Solve for x
   x = 3,113,559.96/2,007.86
6. Step 6: Final answer
   x = 1,550.69