Finding the Fourth Proportional to 3,470.98, 5,205.52 and 1,620.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,470.98 : 5,205.52 = 1,620.27 : x
2. Step 2: Convert to fraction form
   3,470.98/5,205.52 = 1,620.27/x
3. Step 3: Cross multiply
   3,470.98x = 5,205.52 × 1,620.27
4. Step 4: Simplify right side
   3,470.98x = 8,434,347.89
5. Step 5: Solve for x
   x = 8,434,347.89/3,470.98
6. Step 6: Final answer
   x = 2,429.96