Finding the Fourth Proportional to 2,766.13, 3,816.06 and 1,820.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,766.13 : 3,816.06 = 1,820.72 : x
2. Step 2: Convert to fraction form
   2,766.13/3,816.06 = 1,820.72/x
3. Step 3: Cross multiply
   2,766.13x = 3,816.06 × 1,820.72
4. Step 4: Simplify right side
   2,766.13x = 6,947,976.76
5. Step 5: Solve for x
   x = 6,947,976.76/2,766.13
6. Step 6: Final answer
   x = 2,511.80