Finding the Fourth Proportional to 1,357.24, 2,031.72 and 894.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.24 : 2,031.72 = 894.10 : x
2. Step 2: Convert to fraction form
   1,357.24/2,031.72 = 894.10/x
3. Step 3: Cross multiply
   1,357.24x = 2,031.72 × 894.10
4. Step 4: Simplify right side
   1,357.24x = 1,816,560.85
5. Step 5: Solve for x
   x = 1,816,560.85/1,357.24
6. Step 6: Final answer
   x = 1,338.42