Finding the Fourth Proportional to 1,410.59, 1,947.24 and 939.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.59 : 1,947.24 = 939.32 : x
2. Step 2: Convert to fraction form
   1,410.59/1,947.24 = 939.32/x
3. Step 3: Cross multiply
   1,410.59x = 1,947.24 × 939.32
4. Step 4: Simplify right side
   1,410.59x = 1,829,071.74
5. Step 5: Solve for x
   x = 1,829,071.74/1,410.59
6. Step 6: Final answer
   x = 1,296.68