Finding the Fourth Proportional to 2,634.63, 3,950.82 and 990.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634.63 : 3,950.82 = 990.03 : x
2. Step 2: Convert to fraction form
   2,634.63/3,950.82 = 990.03/x
3. Step 3: Cross multiply
   2,634.63x = 3,950.82 × 990.03
4. Step 4: Simplify right side
   2,634.63x = 3,911,430.32
5. Step 5: Solve for x
   x = 3,911,430.32/2,634.63
6. Step 6: Final answer
   x = 1,484.62