Finding the Fourth Proportional to 1,063.15, 1,468.55 and 886.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,063.15 : 1,468.55 = 886.69 : x
2. Step 2: Convert to fraction form
   1,063.15/1,468.55 = 886.69/x
3. Step 3: Cross multiply
   1,063.15x = 1,468.55 × 886.69
4. Step 4: Simplify right side
   1,063.15x = 1,302,148.60
5. Step 5: Solve for x
   x = 1,302,148.60/1,063.15
6. Step 6: Final answer
   x = 1,224.80