Finding the Fourth Proportional to 1,923.98, 2,653.35 and 1,260.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,923.98 : 2,653.35 = 1,260.59 : x
2. Step 2: Convert to fraction form
   1,923.98/2,653.35 = 1,260.59/x
3. Step 3: Cross multiply
   1,923.98x = 2,653.35 × 1,260.59
4. Step 4: Simplify right side
   1,923.98x = 3,344,786.48
5. Step 5: Solve for x
   x = 3,344,786.48/1,923.98
6. Step 6: Final answer
   x = 1,738.47