Finding the Fourth Proportional to 1,456.16, 2,174.16 and 1,417.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.16 : 2,174.16 = 1,417.28 : x
2. Step 2: Convert to fraction form
   1,456.16/2,174.16 = 1,417.28/x
3. Step 3: Cross multiply
   1,456.16x = 2,174.16 × 1,417.28
4. Step 4: Simplify right side
   1,456.16x = 3,081,393.48
5. Step 5: Solve for x
   x = 3,081,393.48/1,456.16
6. Step 6: Final answer
   x = 2,116.11