Finding the Fourth Proportional to 1,338.27, 1,844.94 and 1,153.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,338.27 : 1,844.94 = 1,153.72 : x
2. Step 2: Convert to fraction form
   1,338.27/1,844.94 = 1,153.72/x
3. Step 3: Cross multiply
   1,338.27x = 1,844.94 × 1,153.72
4. Step 4: Simplify right side
   1,338.27x = 2,128,544.18
5. Step 5: Solve for x
   x = 2,128,544.18/1,338.27
6. Step 6: Final answer
   x = 1,590.52