Finding the Fourth Proportional to 1,601.71, 2,402.71 and 677.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.71 : 2,402.71 = 677.23 : x
2. Step 2: Convert to fraction form
   1,601.71/2,402.71 = 677.23/x
3. Step 3: Cross multiply
   1,601.71x = 2,402.71 × 677.23
4. Step 4: Simplify right side
   1,601.71x = 1,627,179.59
5. Step 5: Solve for x
   x = 1,627,179.59/1,601.71
6. Step 6: Final answer
   x = 1,015.90