Finding the Fourth Proportional to 1,418.76, 1,957.82 and 886.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.76 : 1,957.82 = 886.86 : x
2. Step 2: Convert to fraction form
   1,418.76/1,957.82 = 886.86/x
3. Step 3: Cross multiply
   1,418.76x = 1,957.82 × 886.86
4. Step 4: Simplify right side
   1,418.76x = 1,736,307.81
5. Step 5: Solve for x
   x = 1,736,307.81/1,418.76
6. Step 6: Final answer
   x = 1,223.82