Finding the Fourth Proportional to 1,358.66, 1,873.86 and 886.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,358.66 : 1,873.86 = 886.52 : x
2. Step 2: Convert to fraction form
   1,358.66/1,873.86 = 886.52/x
3. Step 3: Cross multiply
   1,358.66x = 1,873.86 × 886.52
4. Step 4: Simplify right side
   1,358.66x = 1,661,214.37
5. Step 5: Solve for x
   x = 1,661,214.37/1,358.66
6. Step 6: Final answer
   x = 1,222.69