Finding the Fourth Proportional to 3,356.72, 5,034.72 and 891.44

Step by Step Solution

1. Step 1: Write the proportion equation
   3,356.72 : 5,034.72 = 891.44 : x
2. Step 2: Convert to fraction form
   3,356.72/5,034.72 = 891.44/x
3. Step 3: Cross multiply
   3,356.72x = 5,034.72 × 891.44
4. Step 4: Simplify right side
   3,356.72x = 4,488,150.80
5. Step 5: Solve for x
   x = 4,488,150.80/3,356.72
6. Step 6: Final answer
   x = 1,337.06