Finding the Fourth Proportional to 3,499.31, 4,823.55 and 2,378.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499.31 : 4,823.55 = 2,378.27 : x
2. Step 2: Convert to fraction form
   3,499.31/4,823.55 = 2,378.27/x
3. Step 3: Cross multiply
   3,499.31x = 4,823.55 × 2,378.27
4. Step 4: Simplify right side
   3,499.31x = 11,471,680.14
5. Step 5: Solve for x
   x = 11,471,680.14/3,499.31
6. Step 6: Final answer
   x = 3,278.27