Finding the Fourth Proportional to 2,632.69, 3,946.60 and 990.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.69 : 3,946.60 = 990.33 : x
2. Step 2: Convert to fraction form
   2,632.69/3,946.60 = 990.33/x
3. Step 3: Cross multiply
   2,632.69x = 3,946.60 × 990.33
4. Step 4: Simplify right side
   2,632.69x = 3,908,424.04
5. Step 5: Solve for x
   x = 3,908,424.04/2,632.69
6. Step 6: Final answer
   x = 1,484.57