Finding the Fourth Proportional to 2,073.01, 2,860.78 and 1,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.01 : 2,860.78 = 1,128.82 : x
2. Step 2: Convert to fraction form
   2,073.01/2,860.78 = 1,128.82/x
3. Step 3: Cross multiply
   2,073.01x = 2,860.78 × 1,128.82
4. Step 4: Simplify right side
   2,073.01x = 3,229,295.71
5. Step 5: Solve for x
   x = 3,229,295.71/2,073.01
6. Step 6: Final answer
   x = 1,557.78