Finding the Fourth Proportional to 2,155.72, 3,233.32 and 1,045.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.72 : 3,233.32 = 1,045.96 : x
2. Step 2: Convert to fraction form
   2,155.72/3,233.32 = 1,045.96/x
3. Step 3: Cross multiply
   2,155.72x = 3,233.32 × 1,045.96
4. Step 4: Simplify right side
   2,155.72x = 3,381,923.39
5. Step 5: Solve for x
   x = 3,381,923.39/2,155.72
6. Step 6: Final answer
   x = 1,568.81