Finding the Fourth Proportional to 2,076.93, 2,866.15 and 1,145.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.93 : 2,866.15 = 1,145.43 : x
2. Step 2: Convert to fraction form
   2,076.93/2,866.15 = 1,145.43/x
3. Step 3: Cross multiply
   2,076.93x = 2,866.15 × 1,145.43
4. Step 4: Simplify right side
   2,076.93x = 3,282,974.19
5. Step 5: Solve for x
   x = 3,282,974.19/2,076.93
6. Step 6: Final answer
   x = 1,580.69