Finding the Fourth Proportional to 1,499.58, 2,250.11 and 677.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.58 : 2,250.11 = 677.77 : x
2. Step 2: Convert to fraction form
   1,499.58/2,250.11 = 677.77/x
3. Step 3: Cross multiply
   1,499.58x = 2,250.11 × 677.77
4. Step 4: Simplify right side
   1,499.58x = 1,525,053.12
5. Step 5: Solve for x
   x = 1,525,053.12/1,499.58
6. Step 6: Final answer
   x = 1,016.99