Finding the Fourth Proportional to 1,645.56, 2,464.02 and 1,155.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,645.56 : 2,464.02 = 1,155.96 : x
2. Step 2: Convert to fraction form
   1,645.56/2,464.02 = 1,155.96/x
3. Step 3: Cross multiply
   1,645.56x = 2,464.02 × 1,155.96
4. Step 4: Simplify right side
   1,645.56x = 2,848,308.56
5. Step 5: Solve for x
   x = 2,848,308.56/1,645.56
6. Step 6: Final answer
   x = 1,730.91