Finding the Fourth Proportional to 2,036.78, 2,806.72 and 1,445.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,036.78 : 2,806.72 = 1,445.66 : x
2. Step 2: Convert to fraction form
   2,036.78/2,806.72 = 1,445.66/x
3. Step 3: Cross multiply
   2,036.78x = 2,806.72 × 1,445.66
4. Step 4: Simplify right side
   2,036.78x = 4,057,545.19
5. Step 5: Solve for x
   x = 4,057,545.19/2,036.78
6. Step 6: Final answer
   x = 1,992.14