Finding the Fourth Proportional to 1,358.37, 1,874.59 and 886.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.37 : 1,874.59 = 886.57 : x
2. Step 2: Convert to fraction form
   1,358.37/1,874.59 = 886.57/x
3. Step 3: Cross multiply
   1,358.37x = 1,874.59 × 886.57
4. Step 4: Simplify right side
   1,358.37x = 1,661,955.26
5. Step 5: Solve for x
   x = 1,661,955.26/1,358.37
6. Step 6: Final answer
   x = 1,223.49