Finding the Fourth Proportional to 3,669.10, 5,063.24 and 1,990.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,669.10 : 5,063.24 = 1,990.42 : x
2. Step 2: Convert to fraction form
   3,669.10/5,063.24 = 1,990.42/x
3. Step 3: Cross multiply
   3,669.10x = 5,063.24 × 1,990.42
4. Step 4: Simplify right side
   3,669.10x = 10,077,974.16
5. Step 5: Solve for x
   x = 10,077,974.16/3,669.10
6. Step 6: Final answer
   x = 2,746.72