Finding the Fourth Proportional to 1,339.34, 2,003.97 and 929.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.34 : 2,003.97 = 929.27 : x
2. Step 2: Convert to fraction form
   1,339.34/2,003.97 = 929.27/x
3. Step 3: Cross multiply
   1,339.34x = 2,003.97 × 929.27
4. Step 4: Simplify right side
   1,339.34x = 1,862,229.20
5. Step 5: Solve for x
   x = 1,862,229.20/1,339.34
6. Step 6: Final answer
   x = 1,390.41