Finding the Fourth Proportional to 2,469.02, 3,406.86 and 1,420.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,469.02 : 3,406.86 = 1,420.88 : x
2. Step 2: Convert to fraction form
   2,469.02/3,406.86 = 1,420.88/x
3. Step 3: Cross multiply
   2,469.02x = 3,406.86 × 1,420.88
4. Step 4: Simplify right side
   2,469.02x = 4,840,722.20
5. Step 5: Solve for x
   x = 4,840,722.20/2,469.02
6. Step 6: Final answer
   x = 1,960.59