Finding the Fourth Proportional to 1,453.72, 2,005.51 and 863.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.72 : 2,005.51 = 863.94 : x
2. Step 2: Convert to fraction form
   1,453.72/2,005.51 = 863.94/x
3. Step 3: Cross multiply
   1,453.72x = 2,005.51 × 863.94
4. Step 4: Simplify right side
   1,453.72x = 1,732,640.31
5. Step 5: Solve for x
   x = 1,732,640.31/1,453.72
6. Step 6: Final answer
   x = 1,191.87