Finding the Fourth Proportional to 1,942.38, 2,678.77 and 1,155.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.38 : 2,678.77 = 1,155.06 : x
2. Step 2: Convert to fraction form
   1,942.38/2,678.77 = 1,155.06/x
3. Step 3: Cross multiply
   1,942.38x = 2,678.77 × 1,155.06
4. Step 4: Simplify right side
   1,942.38x = 3,094,141.52
5. Step 5: Solve for x
   x = 3,094,141.52/1,942.38
6. Step 6: Final answer
   x = 1,592.96