Finding the Fourth Proportional to 1,359.07, 1,874.22 and 886.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.07 : 1,874.22 = 886.81 : x
2. Step 2: Convert to fraction form
   1,359.07/1,874.22 = 886.81/x
3. Step 3: Cross multiply
   1,359.07x = 1,874.22 × 886.81
4. Step 4: Simplify right side
   1,359.07x = 1,662,078.29
5. Step 5: Solve for x
   x = 1,662,078.29/1,359.07
6. Step 6: Final answer
   x = 1,222.96