Finding the Fourth Proportional to 1,383.38, 1,909.06 and 762.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.38 : 1,909.06 = 762.38 : x
2. Step 2: Convert to fraction form
   1,383.38/1,909.06 = 762.38/x
3. Step 3: Cross multiply
   1,383.38x = 1,909.06 × 762.38
4. Step 4: Simplify right side
   1,383.38x = 1,455,429.16
5. Step 5: Solve for x
   x = 1,455,429.16/1,383.38
6. Step 6: Final answer
   x = 1,052.08