Finding the Fourth Proportional to 2,156.38, 2,973.45 and 1,456.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.38 : 2,973.45 = 1,456.54 : x
2. Step 2: Convert to fraction form
   2,156.38/2,973.45 = 1,456.54/x
3. Step 3: Cross multiply
   2,156.38x = 2,973.45 × 1,456.54
4. Step 4: Simplify right side
   2,156.38x = 4,330,948.86
5. Step 5: Solve for x
   x = 4,330,948.86/2,156.38
6. Step 6: Final answer
   x = 2,008.43