Finding the Fourth Proportional to 1,456.79, 2,174.55 and 1,263.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,456.79 : 2,174.55 = 1,263.14 : x
2. Step 2: Convert to fraction form
   1,456.79/2,174.55 = 1,263.14/x
3. Step 3: Cross multiply
   1,456.79x = 2,174.55 × 1,263.14
4. Step 4: Simplify right side
   1,456.79x = 2,746,765.86
5. Step 5: Solve for x
   x = 2,746,765.86/1,456.79
6. Step 6: Final answer
   x = 1,885.50