Finding the Fourth Proportional to 2,011.86, 2,769.55 and 1,730.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.86 : 2,769.55 = 1,730.45 : x
2. Step 2: Convert to fraction form
   2,011.86/2,769.55 = 1,730.45/x
3. Step 3: Cross multiply
   2,011.86x = 2,769.55 × 1,730.45
4. Step 4: Simplify right side
   2,011.86x = 4,792,570.40
5. Step 5: Solve for x
   x = 4,792,570.40/2,011.86
6. Step 6: Final answer
   x = 2,382.16