Finding the Fourth Proportional to 2,012.78, 2,779.32 and 1,267.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.78 : 2,779.32 = 1,267.94 : x
2. Step 2: Convert to fraction form
   2,012.78/2,779.32 = 1,267.94/x
3. Step 3: Cross multiply
   2,012.78x = 2,779.32 × 1,267.94
4. Step 4: Simplify right side
   2,012.78x = 3,524,011.00
5. Step 5: Solve for x
   x = 3,524,011.00/2,012.78
6. Step 6: Final answer
   x = 1,750.82