Finding the Fourth Proportional to 1,456.50, 2,181.96 and 1,146.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.50 : 2,181.96 = 1,146.72 : x
2. Step 2: Convert to fraction form
   1,456.50/2,181.96 = 1,146.72/x
3. Step 3: Cross multiply
   1,456.50x = 2,181.96 × 1,146.72
4. Step 4: Simplify right side
   1,456.50x = 2,502,097.17
5. Step 5: Solve for x
   x = 2,502,097.17/1,456.50
6. Step 6: Final answer
   x = 1,717.88