Finding the Fourth Proportional to 1,453.15, 2,005.68 and 864.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.15 : 2,005.68 = 864.03 : x
2. Step 2: Convert to fraction form
   1,453.15/2,005.68 = 864.03/x
3. Step 3: Cross multiply
   1,453.15x = 2,005.68 × 864.03
4. Step 4: Simplify right side
   1,453.15x = 1,732,967.69
5. Step 5: Solve for x
   x = 1,732,967.69/1,453.15
6. Step 6: Final answer
   x = 1,192.56