Finding the Fourth Proportional to 1,417.30, 1,945.38 and 1,256.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.30 : 1,945.38 = 1,256.41 : x
2. Step 2: Convert to fraction form
   1,417.30/1,945.38 = 1,256.41/x
3. Step 3: Cross multiply
   1,417.30x = 1,945.38 × 1,256.41
4. Step 4: Simplify right side
   1,417.30x = 2,444,202.03
5. Step 5: Solve for x
   x = 2,444,202.03/1,417.30
6. Step 6: Final answer
   x = 1,724.55