Finding the Fourth Proportional to 2,874.33, 4,309.86 and 1,393.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.33 : 4,309.86 = 1,393.05 : x
2. Step 2: Convert to fraction form
   2,874.33/4,309.86 = 1,393.05/x
3. Step 3: Cross multiply
   2,874.33x = 4,309.86 × 1,393.05
4. Step 4: Simplify right side
   2,874.33x = 6,003,850.47
5. Step 5: Solve for x
   x = 6,003,850.47/2,874.33
6. Step 6: Final answer
   x = 2,088.78