Finding the Fourth Proportional to 1,453.49, 2,005.16 and 863.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.49 : 2,005.16 = 863.69 : x
2. Step 2: Convert to fraction form
   1,453.49/2,005.16 = 863.69/x
3. Step 3: Cross multiply
   1,453.49x = 2,005.16 × 863.69
4. Step 4: Simplify right side
   1,453.49x = 1,731,835.22
5. Step 5: Solve for x
   x = 1,731,835.22/1,453.49
6. Step 6: Final answer
   x = 1,191.50