Finding the Fourth Proportional to 2,221.83, 3,056.00 and 1,820.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.83 : 3,056.00 = 1,820.61 : x
2. Step 2: Convert to fraction form
   2,221.83/3,056.00 = 1,820.61/x
3. Step 3: Cross multiply
   2,221.83x = 3,056.00 × 1,820.61
4. Step 4: Simplify right side
   2,221.83x = 5,563,775.06
5. Step 5: Solve for x
   x = 5,563,775.06/2,221.83
6. Step 6: Final answer
   x = 2,504.14