Finding the Fourth Proportional to 1,450.59, 2,173.59 and 864.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.59 : 2,173.59 = 864.15 : x
2. Step 2: Convert to fraction form
   1,450.59/2,173.59 = 864.15/x
3. Step 3: Cross multiply
   1,450.59x = 2,173.59 × 864.15
4. Step 4: Simplify right side
   1,450.59x = 1,878,307.80
5. Step 5: Solve for x
   x = 1,878,307.80/1,450.59
6. Step 6: Final answer
   x = 1,294.86