Finding the Fourth Proportional to 1,873.35, 2,804.82 and 1,215.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,873.35 : 2,804.82 = 1,215.99 : x
2. Step 2: Convert to fraction form
   1,873.35/2,804.82 = 1,215.99/x
3. Step 3: Cross multiply
   1,873.35x = 2,804.82 × 1,215.99
4. Step 4: Simplify right side
   1,873.35x = 3,410,633.07
5. Step 5: Solve for x
   x = 3,410,633.07/1,873.35
6. Step 6: Final answer
   x = 1,820.61