Finding the Fourth Proportional to 2,945.86, 4,065.31 and 1,619.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,945.86 : 4,065.31 = 1,619.59 : x
2. Step 2: Convert to fraction form
   2,945.86/4,065.31 = 1,619.59/x
3. Step 3: Cross multiply
   2,945.86x = 4,065.31 × 1,619.59
4. Step 4: Simplify right side
   2,945.86x = 6,584,135.42
5. Step 5: Solve for x
   x = 6,584,135.42/2,945.86
6. Step 6: Final answer
   x = 2,235.05