Finding the Fourth Proportional to 1,942.76, 2,681.91 and 1,145.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.76 : 2,681.91 = 1,145.82 : x
2. Step 2: Convert to fraction form
   1,942.76/2,681.91 = 1,145.82/x
3. Step 3: Cross multiply
   1,942.76x = 2,681.91 × 1,145.82
4. Step 4: Simplify right side
   1,942.76x = 3,072,976.06
5. Step 5: Solve for x
   x = 3,072,976.06/1,942.76
6. Step 6: Final answer
   x = 1,581.76