Finding the Fourth Proportional to 2,179.86, 3,262.50 and 2,150.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.86 : 3,262.50 = 2,150.70 : x
2. Step 2: Convert to fraction form
   2,179.86/3,262.50 = 2,150.70/x
3. Step 3: Cross multiply
   2,179.86x = 3,262.50 × 2,150.70
4. Step 4: Simplify right side
   2,179.86x = 7,016,658.75
5. Step 5: Solve for x
   x = 7,016,658.75/2,179.86
6. Step 6: Final answer
   x = 3,218.86