Finding the Fourth Proportional to 1,493.63, 2,061.48 and 864.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.63 : 2,061.48 = 864.56 : x
2. Step 2: Convert to fraction form
   1,493.63/2,061.48 = 864.56/x
3. Step 3: Cross multiply
   1,493.63x = 2,061.48 × 864.56
4. Step 4: Simplify right side
   1,493.63x = 1,782,262.84
5. Step 5: Solve for x
   x = 1,782,262.84/1,493.63
6. Step 6: Final answer
   x = 1,193.25