Finding the Fourth Proportional to 1,942.56, 2,912.76 and 1,395

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.56 : 2,912.76 = 1,395 : x
2. Step 2: Convert to fraction form
   1,942.56/2,912.76 = 1,395/x
3. Step 3: Cross multiply
   1,942.56x = 2,912.76 × 1,395
4. Step 4: Simplify right side
   1,942.56x = 4,063,300.20
5. Step 5: Solve for x
   x = 4,063,300.20/1,942.56
6. Step 6: Final answer
   x = 2,091.72