Finding the Fourth Proportional to 1,493.15, 2,060.66 and 863.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.15 : 2,060.66 = 863.89 : x
2. Step 2: Convert to fraction form
   1,493.15/2,060.66 = 863.89/x
3. Step 3: Cross multiply
   1,493.15x = 2,060.66 × 863.89
4. Step 4: Simplify right side
   1,493.15x = 1,780,180.58
5. Step 5: Solve for x
   x = 1,780,180.58/1,493.15
6. Step 6: Final answer
   x = 1,192.24