Finding the Fourth Proportional to 2,012, 2,776.52 and 1,127.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012 : 2,776.52 = 1,127.88 : x
2. Step 2: Convert to fraction form
   2,012/2,776.52 = 1,127.88/x
3. Step 3: Cross multiply
   2,012x = 2,776.52 × 1,127.88
4. Step 4: Simplify right side
   2,012x = 3,131,581.38
5. Step 5: Solve for x
   x = 3,131,581.38/2,012
6. Step 6: Final answer
   x = 1,556.45