Finding the Fourth Proportional to 2,858.16, 4,283.82 and 1,393.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858.16 : 4,283.82 = 1,393.94 : x
2. Step 2: Convert to fraction form
   2,858.16/4,283.82 = 1,393.94/x
3. Step 3: Cross multiply
   2,858.16x = 4,283.82 × 1,393.94
4. Step 4: Simplify right side
   2,858.16x = 5,971,388.05
5. Step 5: Solve for x
   x = 5,971,388.05/2,858.16
6. Step 6: Final answer
   x = 2,089.24