Finding the Fourth Proportional to 2,387.82, 3,294.96 and 1,393.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.82 : 3,294.96 = 1,393.14 : x
2. Step 2: Convert to fraction form
   2,387.82/3,294.96 = 1,393.14/x
3. Step 3: Cross multiply
   2,387.82x = 3,294.96 × 1,393.14
4. Step 4: Simplify right side
   2,387.82x = 4,590,340.57
5. Step 5: Solve for x
   x = 4,590,340.57/2,387.82
6. Step 6: Final answer
   x = 1,922.40