Finding the Fourth Proportional to 2,649, 3,971.75 and 1,262.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,649 : 3,971.75 = 1,262.55 : x
2. Step 2: Convert to fraction form
   2,649/3,971.75 = 1,262.55/x
3. Step 3: Cross multiply
   2,649x = 3,971.75 × 1,262.55
4. Step 4: Simplify right side
   2,649x = 5,014,526.65
5. Step 5: Solve for x
   x = 5,014,526.65/2,649
6. Step 6: Final answer
   x = 1,892.99