Finding the Fourth Proportional to 2,439.86, 3,365.88 and 1,775.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.86 : 3,365.88 = 1,775.30 : x
2. Step 2: Convert to fraction form
   2,439.86/3,365.88 = 1,775.30/x
3. Step 3: Cross multiply
   2,439.86x = 3,365.88 × 1,775.30
4. Step 4: Simplify right side
   2,439.86x = 5,975,446.76
5. Step 5: Solve for x
   x = 5,975,446.76/2,439.86
6. Step 6: Final answer
   x = 2,449.09