Finding the Fourth Proportional to 2,067.01, 2,851.64 and 1,320.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.01 : 2,851.64 = 1,320.77 : x
2. Step 2: Convert to fraction form
   2,067.01/2,851.64 = 1,320.77/x
3. Step 3: Cross multiply
   2,067.01x = 2,851.64 × 1,320.77
4. Step 4: Simplify right side
   2,067.01x = 3,766,360.56
5. Step 5: Solve for x
   x = 3,766,360.56/2,067.01
6. Step 6: Final answer
   x = 1,822.13