Finding the Fourth Proportional to 4,631.78, 6,390.83 and 2,742.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,631.78 : 6,390.83 = 2,742.42 : x
2. Step 2: Convert to fraction form
   4,631.78/6,390.83 = 2,742.42/x
3. Step 3: Cross multiply
   4,631.78x = 6,390.83 × 2,742.42
4. Step 4: Simplify right side
   4,631.78x = 17,526,346.86
5. Step 5: Solve for x
   x = 17,526,346.86/4,631.78
6. Step 6: Final answer
   x = 3,783.94