Finding the Fourth Proportional to 1,773.57, 2,659.57 and 677.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,773.57 : 2,659.57 = 677.17 : x
2. Step 2: Convert to fraction form
   1,773.57/2,659.57 = 677.17/x
3. Step 3: Cross multiply
   1,773.57x = 2,659.57 × 677.17
4. Step 4: Simplify right side
   1,773.57x = 1,800,981.02
5. Step 5: Solve for x
   x = 1,800,981.02/1,773.57
6. Step 6: Final answer
   x = 1,015.46