Finding the Fourth Proportional to 3,669.45, 5,063.82 and 1,990.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669.45 : 5,063.82 = 1,990.88 : x
2. Step 2: Convert to fraction form
   3,669.45/5,063.82 = 1,990.88/x
3. Step 3: Cross multiply
   3,669.45x = 5,063.82 × 1,990.88
4. Step 4: Simplify right side
   3,669.45x = 10,081,444.17
5. Step 5: Solve for x
   x = 10,081,444.17/3,669.45
6. Step 6: Final answer
   x = 2,747.40