Finding the Fourth Proportional to 2,012.23, 2,776.53 and 1,127.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.23 : 2,776.53 = 1,127.89 : x
2. Step 2: Convert to fraction form
   2,012.23/2,776.53 = 1,127.89/x
3. Step 3: Cross multiply
   2,012.23x = 2,776.53 × 1,127.89
4. Step 4: Simplify right side
   2,012.23x = 3,131,620.42
5. Step 5: Solve for x
   x = 3,131,620.42/2,012.23
6. Step 6: Final answer
   x = 1,556.29