Finding the Fourth Proportional to 1,394.47, 2,093.45 and 868.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.47 : 2,093.45 = 868.15 : x
2. Step 2: Convert to fraction form
   1,394.47/2,093.45 = 868.15/x
3. Step 3: Cross multiply
   1,394.47x = 2,093.45 × 868.15
4. Step 4: Simplify right side
   1,394.47x = 1,817,426.89
5. Step 5: Solve for x
   x = 1,817,426.89/1,394.47
6. Step 6: Final answer
   x = 1,303.31