Finding the Fourth Proportional to 2,007.75, 2,770.70 and 1,111.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.75 : 2,770.70 = 1,111.49 : x
2. Step 2: Convert to fraction form
   2,007.75/2,770.70 = 1,111.49/x
3. Step 3: Cross multiply
   2,007.75x = 2,770.70 × 1,111.49
4. Step 4: Simplify right side
   2,007.75x = 3,079,605.34
5. Step 5: Solve for x
   x = 3,079,605.34/2,007.75
6. Step 6: Final answer
   x = 1,533.86