Finding the Fourth Proportional to 1,661.94, 2,292.71 and 1,064.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661.94 : 2,292.71 = 1,064.15 : x
2. Step 2: Convert to fraction form
   1,661.94/2,292.71 = 1,064.15/x
3. Step 3: Cross multiply
   1,661.94x = 2,292.71 × 1,064.15
4. Step 4: Simplify right side
   1,661.94x = 2,439,782.03
5. Step 5: Solve for x
   x = 2,439,782.03/1,661.94
6. Step 6: Final answer
   x = 1,468.03