Finding the Fourth Proportional to 1,339.43, 1,849.16 and 920.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.43 : 1,849.16 = 920.03 : x
2. Step 2: Convert to fraction form
   1,339.43/1,849.16 = 920.03/x
3. Step 3: Cross multiply
   1,339.43x = 1,849.16 × 920.03
4. Step 4: Simplify right side
   1,339.43x = 1,701,282.67
5. Step 5: Solve for x
   x = 1,701,282.67/1,339.43
6. Step 6: Final answer
   x = 1,270.15