Finding the Fourth Proportional to 3,678.34, 5,076.18 and 1,999.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,678.34 : 5,076.18 = 1,999.76 : x
2. Step 2: Convert to fraction form
   3,678.34/5,076.18 = 1,999.76/x
3. Step 3: Cross multiply
   3,678.34x = 5,076.18 × 1,999.76
4. Step 4: Simplify right side
   3,678.34x = 10,151,141.72
5. Step 5: Solve for x
   x = 10,151,141.72/3,678.34
6. Step 6: Final answer
   x = 2,759.71