Finding the Fourth Proportional to 2,148.69, 2,965.61 and 1,264.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.69 : 2,965.61 = 1,264.98 : x
2. Step 2: Convert to fraction form
   2,148.69/2,965.61 = 1,264.98/x
3. Step 3: Cross multiply
   2,148.69x = 2,965.61 × 1,264.98
4. Step 4: Simplify right side
   2,148.69x = 3,751,451.62
5. Step 5: Solve for x
   x = 3,751,451.62/2,148.69
6. Step 6: Final answer
   x = 1,745.92