Finding the Fourth Proportional to 1,726.56, 2,585.72 and 945.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,726.56 : 2,585.72 = 945.38 : x
2. Step 2: Convert to fraction form
   1,726.56/2,585.72 = 945.38/x
3. Step 3: Cross multiply
   1,726.56x = 2,585.72 × 945.38
4. Step 4: Simplify right side
   1,726.56x = 2,444,487.97
5. Step 5: Solve for x
   x = 2,444,487.97/1,726.56
6. Step 6: Final answer
   x = 1,415.81