Finding the Fourth Proportional to 1,499.76, 2,248.61 and 677.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.76 : 2,248.61 = 677.58 : x
2. Step 2: Convert to fraction form
   1,499.76/2,248.61 = 677.58/x
3. Step 3: Cross multiply
   1,499.76x = 2,248.61 × 677.58
4. Step 4: Simplify right side
   1,499.76x = 1,523,609.78
5. Step 5: Solve for x
   x = 1,523,609.78/1,499.76
6. Step 6: Final answer
   x = 1,015.91