Finding the Fourth Proportional to 1,493.55, 2,060.73 and 863.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.55 : 2,060.73 = 863.88 : x
2. Step 2: Convert to fraction form
   1,493.55/2,060.73 = 863.88/x
3. Step 3: Cross multiply
   1,493.55x = 2,060.73 × 863.88
4. Step 4: Simplify right side
   1,493.55x = 1,780,223.43
5. Step 5: Solve for x
   x = 1,780,223.43/1,493.55
6. Step 6: Final answer
   x = 1,191.94