Finding the Fourth Proportional to 1,441.89, 1,988.66 and 969.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.89 : 1,988.66 = 969.63 : x
2. Step 2: Convert to fraction form
   1,441.89/1,988.66 = 969.63/x
3. Step 3: Cross multiply
   1,441.89x = 1,988.66 × 969.63
4. Step 4: Simplify right side
   1,441.89x = 1,928,259.55
5. Step 5: Solve for x
   x = 1,928,259.55/1,441.89
6. Step 6: Final answer
   x = 1,337.31