Finding the Fourth Proportional to 1,410.56, 1,947.26 and 939.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.56 : 1,947.26 = 939.25 : x
2. Step 2: Convert to fraction form
   1,410.56/1,947.26 = 939.25/x
3. Step 3: Cross multiply
   1,410.56x = 1,947.26 × 939.25
4. Step 4: Simplify right side
   1,410.56x = 1,828,952.50
5. Step 5: Solve for x
   x = 1,828,952.50/1,410.56
6. Step 6: Final answer
   x = 1,296.61