Finding the Fourth Proportional to 2,583.72, 3,873.72 and 1,266.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,583.72 : 3,873.72 = 1,266.96 : x
2. Step 2: Convert to fraction form
   2,583.72/3,873.72 = 1,266.96/x
3. Step 3: Cross multiply
   2,583.72x = 3,873.72 × 1,266.96
4. Step 4: Simplify right side
   2,583.72x = 4,907,848.29
5. Step 5: Solve for x
   x = 4,907,848.29/2,583.72
6. Step 6: Final answer
   x = 1,899.53