Finding the Fourth Proportional to 2,861.72, 4,294.50 and 1,012.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,861.72 : 4,294.50 = 1,012.83 : x
2. Step 2: Convert to fraction form
   2,861.72/4,294.50 = 1,012.83/x
3. Step 3: Cross multiply
   2,861.72x = 4,294.50 × 1,012.83
4. Step 4: Simplify right side
   2,861.72x = 4,349,598.44
5. Step 5: Solve for x
   x = 4,349,598.44/2,861.72
6. Step 6: Final answer
   x = 1,519.92