Finding the Fourth Proportional to 2,402.98, 3,604.72 and 671.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,402.98 : 3,604.72 = 671.60 : x
2. Step 2: Convert to fraction form
   2,402.98/3,604.72 = 671.60/x
3. Step 3: Cross multiply
   2,402.98x = 3,604.72 × 671.60
4. Step 4: Simplify right side
   2,402.98x = 2,420,929.95
5. Step 5: Solve for x
   x = 2,420,929.95/2,402.98
6. Step 6: Final answer
   x = 1,007.47