Finding the Fourth Proportional to 1,383.84, 1,909.72 and 754.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.84 : 1,909.72 = 754.38 : x
2. Step 2: Convert to fraction form
   1,383.84/1,909.72 = 754.38/x
3. Step 3: Cross multiply
   1,383.84x = 1,909.72 × 754.38
4. Step 4: Simplify right side
   1,383.84x = 1,440,654.57
5. Step 5: Solve for x
   x = 1,440,654.57/1,383.84
6. Step 6: Final answer
   x = 1,041.06