Finding the Fourth Proportional to 2,871.69, 4,307.92 and 1,023.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,871.69 : 4,307.92 = 1,023.30 : x
2. Step 2: Convert to fraction form
   2,871.69/4,307.92 = 1,023.30/x
3. Step 3: Cross multiply
   2,871.69x = 4,307.92 × 1,023.30
4. Step 4: Simplify right side
   2,871.69x = 4,408,291.98
5. Step 5: Solve for x
   x = 4,408,291.98/2,871.69
6. Step 6: Final answer
   x = 1,535.09