Finding the Fourth Proportional to 2,838.72, 4,256.16 and 1,106.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,838.72 : 4,256.16 = 1,106.88 : x
2. Step 2: Convert to fraction form
   2,838.72/4,256.16 = 1,106.88/x
3. Step 3: Cross multiply
   2,838.72x = 4,256.16 × 1,106.88
4. Step 4: Simplify right side
   2,838.72x = 4,711,058.38
5. Step 5: Solve for x
   x = 4,711,058.38/2,838.72
6. Step 6: Final answer
   x = 1,659.57