Finding the Fourth Proportional to 2,635.00, 3,949.45 and 990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,635.00 : 3,949.45 = 990.50 : x
2. Step 2: Convert to fraction form
   2,635.00/3,949.45 = 990.50/x
3. Step 3: Cross multiply
   2,635.00x = 3,949.45 × 990.50
4. Step 4: Simplify right side
   2,635.00x = 3,911,908.00
5. Step 5: Solve for x
   x = 3,911,908.00/2,635.00
6. Step 6: Final answer
   x = 1,484.60