Finding the Fourth Proportional to 1,429.62, 1,982.90 and 1,371.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.62 : 1,982.90 = 1,371.30 : x
2. Step 2: Convert to fraction form
   1,429.62/1,982.90 = 1,371.30/x
3. Step 3: Cross multiply
   1,429.62x = 1,982.90 × 1,371.30
4. Step 4: Simplify right side
   1,429.62x = 2,719,143.91
5. Step 5: Solve for x
   x = 2,719,143.91/1,429.62
6. Step 6: Final answer
   x = 1,902.00