Finding the Fourth Proportional to 3,990.63, 5,943.78 and 3,782.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,990.63 : 5,943.78 = 3,782.46 : x
2. Step 2: Convert to fraction form
   3,990.63/5,943.78 = 3,782.46/x
3. Step 3: Cross multiply
   3,990.63x = 5,943.78 × 3,782.46
4. Step 4: Simplify right side
   3,990.63x = 22,482,110.10
5. Step 5: Solve for x
   x = 22,482,110.10/3,990.63
6. Step 6: Final answer
   x = 5,633.72