Finding the Fourth Proportional to 1,602.17, 2,404.27 and 677.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,602.17 : 2,404.27 = 677.76 : x
2. Step 2: Convert to fraction form
   1,602.17/2,404.27 = 677.76/x
3. Step 3: Cross multiply
   1,602.17x = 2,404.27 × 677.76
4. Step 4: Simplify right side
   1,602.17x = 1,629,518.88
5. Step 5: Solve for x
   x = 1,629,518.88/1,602.17
6. Step 6: Final answer
   x = 1,017.07