Finding the Fourth Proportional to 2,406.48, 3,321.98 and 1,620.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.48 : 3,321.98 = 1,620.98 : x
2. Step 2: Convert to fraction form
   2,406.48/3,321.98 = 1,620.98/x
3. Step 3: Cross multiply
   2,406.48x = 3,321.98 × 1,620.98
4. Step 4: Simplify right side
   2,406.48x = 5,384,863.14
5. Step 5: Solve for x
   x = 5,384,863.14/2,406.48
6. Step 6: Final answer
   x = 2,237.65