Finding the Fourth Proportional to 1,645.92, 2,466.72 and 1,231.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645.92 : 2,466.72 = 1,231.74 : x
2. Step 2: Convert to fraction form
   1,645.92/2,466.72 = 1,231.74/x
3. Step 3: Cross multiply
   1,645.92x = 2,466.72 × 1,231.74
4. Step 4: Simplify right side
   1,645.92x = 3,038,357.69
5. Step 5: Solve for x
   x = 3,038,357.69/1,645.92
6. Step 6: Final answer
   x = 1,845.99