Finding the Fourth Proportional to 1,529.10, 2,109.39 and 969.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,529.10 : 2,109.39 = 969.42 : x
2. Step 2: Convert to fraction form
   1,529.10/2,109.39 = 969.42/x
3. Step 3: Cross multiply
   1,529.10x = 2,109.39 × 969.42
4. Step 4: Simplify right side
   1,529.10x = 2,044,884.85
5. Step 5: Solve for x
   x = 2,044,884.85/1,529.10
6. Step 6: Final answer
   x = 1,337.31