Finding the Fourth Proportional to 1,817.43, 2,508.03 and 1,071.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,817.43 : 2,508.03 = 1,071.42 : x
2. Step 2: Convert to fraction form
   1,817.43/2,508.03 = 1,071.42/x
3. Step 3: Cross multiply
   1,817.43x = 2,508.03 × 1,071.42
4. Step 4: Simplify right side
   1,817.43x = 2,687,153.50
5. Step 5: Solve for x
   x = 2,687,153.50/1,817.43
6. Step 6: Final answer
   x = 1,478.55