Finding the Fourth Proportional to 1,820.83, 2,732.31 and 1,236.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820.83 : 2,732.31 = 1,236.19 : x
2. Step 2: Convert to fraction form
   1,820.83/2,732.31 = 1,236.19/x
3. Step 3: Cross multiply
   1,820.83x = 2,732.31 × 1,236.19
4. Step 4: Simplify right side
   1,820.83x = 3,377,641.43
5. Step 5: Solve for x
   x = 3,377,641.43/1,820.83
6. Step 6: Final answer
   x = 1,855.00