Finding the Fourth Proportional to 1,359.50, 1,875.36 and 886.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.50 : 1,875.36 = 886.73 : x
2. Step 2: Convert to fraction form
   1,359.50/1,875.36 = 886.73/x
3. Step 3: Cross multiply
   1,359.50x = 1,875.36 × 886.73
4. Step 4: Simplify right side
   1,359.50x = 1,662,942.66
5. Step 5: Solve for x
   x = 1,662,942.66/1,359.50
6. Step 6: Final answer
   x = 1,223.20