Finding the Fourth Proportional to 1,383.40, 1,907.30 and 969.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.40 : 1,907.30 = 969.96 : x
2. Step 2: Convert to fraction form
   1,383.40/1,907.30 = 969.96/x
3. Step 3: Cross multiply
   1,383.40x = 1,907.30 × 969.96
4. Step 4: Simplify right side
   1,383.40x = 1,850,004.71
5. Step 5: Solve for x
   x = 1,850,004.71/1,383.40
6. Step 6: Final answer
   x = 1,337.29