Finding the Fourth Proportional to 1,384.60, 2,076.18 and 863.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.60 : 2,076.18 = 863.32 : x
2. Step 2: Convert to fraction form
   1,384.60/2,076.18 = 863.32/x
3. Step 3: Cross multiply
   1,384.60x = 2,076.18 × 863.32
4. Step 4: Simplify right side
   1,384.60x = 1,792,407.72
5. Step 5: Solve for x
   x = 1,792,407.72/1,384.60
6. Step 6: Final answer
   x = 1,294.53