Finding the Fourth Proportional to 1,383.35, 1,909.78 and 941.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383.35 : 1,909.78 = 941.90 : x
2. Step 2: Convert to fraction form
   1,383.35/1,909.78 = 941.90/x
3. Step 3: Cross multiply
   1,383.35x = 1,909.78 × 941.90
4. Step 4: Simplify right side
   1,383.35x = 1,798,809.88
5. Step 5: Solve for x
   x = 1,798,809.88/1,383.35
6. Step 6: Final answer
   x = 1,300.33