Finding the Fourth Proportional to 1,662.18, 2,485.58 and 1,351.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.18 : 2,485.58 = 1,351.56 : x
2. Step 2: Convert to fraction form
   1,662.18/2,485.58 = 1,351.56/x
3. Step 3: Cross multiply
   1,662.18x = 2,485.58 × 1,351.56
4. Step 4: Simplify right side
   1,662.18x = 3,359,399.09
5. Step 5: Solve for x
   x = 3,359,399.09/1,662.18
6. Step 6: Final answer
   x = 2,021.08