Finding the Fourth Proportional to 2,446.10, 3,670.05 and 986.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,446.10 : 3,670.05 = 986.30 : x
2. Step 2: Convert to fraction form
   2,446.10/3,670.05 = 986.30/x
3. Step 3: Cross multiply
   2,446.10x = 3,670.05 × 986.30
4. Step 4: Simplify right side
   2,446.10x = 3,619,770.32
5. Step 5: Solve for x
   x = 3,619,770.32/2,446.10
6. Step 6: Final answer
   x = 1,479.81