Finding the Fourth Proportional to 2,011.77, 2,776.23 and 1,127.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.77 : 2,776.23 = 1,127.61 : x
2. Step 2: Convert to fraction form
   2,011.77/2,776.23 = 1,127.61/x
3. Step 3: Cross multiply
   2,011.77x = 2,776.23 × 1,127.61
4. Step 4: Simplify right side
   2,011.77x = 3,130,504.71
5. Step 5: Solve for x
   x = 3,130,504.71/2,011.77
6. Step 6: Final answer
   x = 1,556.09