Finding the Fourth Proportional to 1,119.98, 1,545.72 and 677.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.98 : 1,545.72 = 677.89 : x
2. Step 2: Convert to fraction form
   1,119.98/1,545.72 = 677.89/x
3. Step 3: Cross multiply
   1,119.98x = 1,545.72 × 677.89
4. Step 4: Simplify right side
   1,119.98x = 1,047,830.06
5. Step 5: Solve for x
   x = 1,047,830.06/1,119.98
6. Step 6: Final answer
   x = 935.58