Finding the Fourth Proportional to 1,499.22, 2,247 and 677.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.22 : 2,247 = 677.88 : x
2. Step 2: Convert to fraction form
   1,499.22/2,247 = 677.88/x
3. Step 3: Cross multiply
   1,499.22x = 2,247 × 677.88
4. Step 4: Simplify right side
   1,499.22x = 1,523,196.36
5. Step 5: Solve for x
   x = 1,523,196.36/1,499.22
6. Step 6: Final answer
   x = 1,015.99