Finding the Fourth Proportional to 2,785.30, 4,179.98 and 1,324.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.30 : 4,179.98 = 1,324.46 : x
2. Step 2: Convert to fraction form
   2,785.30/4,179.98 = 1,324.46/x
3. Step 3: Cross multiply
   2,785.30x = 4,179.98 × 1,324.46
4. Step 4: Simplify right side
   2,785.30x = 5,536,216.31
5. Step 5: Solve for x
   x = 5,536,216.31/2,785.30
6. Step 6: Final answer
   x = 1,987.66