Finding the Fourth Proportional to 1,383.98, 1,909.47 and 969.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.98 : 1,909.47 = 969.26 : x
2. Step 2: Convert to fraction form
   1,383.98/1,909.47 = 969.26/x
3. Step 3: Cross multiply
   1,383.98x = 1,909.47 × 969.26
4. Step 4: Simplify right side
   1,383.98x = 1,850,772.89
5. Step 5: Solve for x
   x = 1,850,772.89/1,383.98
6. Step 6: Final answer
   x = 1,337.28