Finding the Fourth Proportional to 1,396.94, 1,928.37 and 942.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.94 : 1,928.37 = 942.79 : x
2. Step 2: Convert to fraction form
   1,396.94/1,928.37 = 942.79/x
3. Step 3: Cross multiply
   1,396.94x = 1,928.37 × 942.79
4. Step 4: Simplify right side
   1,396.94x = 1,818,047.75
5. Step 5: Solve for x
   x = 1,818,047.75/1,396.94
6. Step 6: Final answer
   x = 1,301.45