Finding the Fourth Proportional to 1,383.52, 1,909.24 and 762.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.52 : 1,909.24 = 762.48 : x
2. Step 2: Convert to fraction form
   1,383.52/1,909.24 = 762.48/x
3. Step 3: Cross multiply
   1,383.52x = 1,909.24 × 762.48
4. Step 4: Simplify right side
   1,383.52x = 1,455,757.32
5. Step 5: Solve for x
   x = 1,455,757.32/1,383.52
6. Step 6: Final answer
   x = 1,052.21