Finding the Fourth Proportional to 2,573.69, 3,861.45 and 1,012.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.69 : 3,861.45 = 1,012.83 : x
2. Step 2: Convert to fraction form
   2,573.69/3,861.45 = 1,012.83/x
3. Step 3: Cross multiply
   2,573.69x = 3,861.45 × 1,012.83
4. Step 4: Simplify right side
   2,573.69x = 3,910,975.63
5. Step 5: Solve for x
   x = 3,910,975.63/2,573.69
6. Step 6: Final answer
   x = 1,519.60