Finding the Fourth Proportional to 3,113.83, 4,672.37 and 1,266.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,113.83 : 4,672.37 = 1,266.31 : x
2. Step 2: Convert to fraction form
   3,113.83/4,672.37 = 1,266.31/x
3. Step 3: Cross multiply
   3,113.83x = 4,672.37 × 1,266.31
4. Step 4: Simplify right side
   3,113.83x = 5,916,668.85
5. Step 5: Solve for x
   x = 5,916,668.85/3,113.83
6. Step 6: Final answer
   x = 1,900.13