Finding the Fourth Proportional to 1,359.32, 1,876.70 and 939.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.32 : 1,876.70 = 939.52 : x
2. Step 2: Convert to fraction form
   1,359.32/1,876.70 = 939.52/x
3. Step 3: Cross multiply
   1,359.32x = 1,876.70 × 939.52
4. Step 4: Simplify right side
   1,359.32x = 1,763,183.10
5. Step 5: Solve for x
   x = 1,763,183.10/1,359.32
6. Step 6: Final answer
   x = 1,297.11