Finding the Fourth Proportional to 3,116.10, 4,673.46 and 1,266.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.10 : 4,673.46 = 1,266.72 : x
2. Step 2: Convert to fraction form
   3,116.10/4,673.46 = 1,266.72/x
3. Step 3: Cross multiply
   3,116.10x = 4,673.46 × 1,266.72
4. Step 4: Simplify right side
   3,116.10x = 5,919,965.25
5. Step 5: Solve for x
   x = 5,919,965.25/3,116.10
6. Step 6: Final answer
   x = 1,899.80