Finding the Fourth Proportional to 2,318.56, 3,196.28 and 1,433.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,318.56 : 3,196.28 = 1,433.86 : x
2. Step 2: Convert to fraction form
   2,318.56/3,196.28 = 1,433.86/x
3. Step 3: Cross multiply
   2,318.56x = 3,196.28 × 1,433.86
4. Step 4: Simplify right side
   2,318.56x = 4,583,018.04
5. Step 5: Solve for x
   x = 4,583,018.04/2,318.56
6. Step 6: Final answer
   x = 1,976.67