Finding the Fourth Proportional to 2,401.63, 3,603.05 and 670.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.63 : 3,603.05 = 670.25 : x
2. Step 2: Convert to fraction form
   2,401.63/3,603.05 = 670.25/x
3. Step 3: Cross multiply
   2,401.63x = 3,603.05 × 670.25
4. Step 4: Simplify right side
   2,401.63x = 2,414,944.26
5. Step 5: Solve for x
   x = 2,414,944.26/2,401.63
6. Step 6: Final answer
   x = 1,005.54