Finding the Fourth Proportional to 1,410.44, 1,946.72 and 939.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.44 : 1,946.72 = 939.16 : x
2. Step 2: Convert to fraction form
   1,410.44/1,946.72 = 939.16/x
3. Step 3: Cross multiply
   1,410.44x = 1,946.72 × 939.16
4. Step 4: Simplify right side
   1,410.44x = 1,828,281.56
5. Step 5: Solve for x
   x = 1,828,281.56/1,410.44
6. Step 6: Final answer
   x = 1,296.25