Finding the Fourth Proportional to 2,011.57, 2,775.98 and 1,127.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.57 : 2,775.98 = 1,127.41 : x
2. Step 2: Convert to fraction form
   2,011.57/2,775.98 = 1,127.41/x
3. Step 3: Cross multiply
   2,011.57x = 2,775.98 × 1,127.41
4. Step 4: Simplify right side
   2,011.57x = 3,129,667.61
5. Step 5: Solve for x
   x = 3,129,667.61/2,011.57
6. Step 6: Final answer
   x = 1,555.83