Finding the Fourth Proportional to 2,011.68, 2,776.50 and 1,127.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.68 : 2,776.50 = 1,127.88 : x
2. Step 2: Convert to fraction form
   2,011.68/2,776.50 = 1,127.88/x
3. Step 3: Cross multiply
   2,011.68x = 2,776.50 × 1,127.88
4. Step 4: Simplify right side
   2,011.68x = 3,131,558.82
5. Step 5: Solve for x
   x = 3,131,558.82/2,011.68
6. Step 6: Final answer
   x = 1,556.69