Finding the Fourth Proportional to 1,401.63, 2,101.23 and 969.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.63 : 2,101.23 = 969.09 : x
2. Step 2: Convert to fraction form
   1,401.63/2,101.23 = 969.09/x
3. Step 3: Cross multiply
   1,401.63x = 2,101.23 × 969.09
4. Step 4: Simplify right side
   1,401.63x = 2,036,280.98
5. Step 5: Solve for x
   x = 2,036,280.98/1,401.63
6. Step 6: Final answer
   x = 1,452.79