Finding the Fourth Proportional to 1,871.01, 2,582.02 and 1,031.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.01 : 2,582.02 = 1,031.72 : x
2. Step 2: Convert to fraction form
   1,871.01/2,582.02 = 1,031.72/x
3. Step 3: Cross multiply
   1,871.01x = 2,582.02 × 1,031.72
4. Step 4: Simplify right side
   1,871.01x = 2,663,912.64
5. Step 5: Solve for x
   x = 2,663,912.64/1,871.01
6. Step 6: Final answer
   x = 1,423.78