Finding the Fourth Proportional to 1,544.52, 2,131.86 and 993.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,544.52 : 2,131.86 = 993.48 : x
2. Step 2: Convert to fraction form
   1,544.52/2,131.86 = 993.48/x
3. Step 3: Cross multiply
   1,544.52x = 2,131.86 × 993.48
4. Step 4: Simplify right side
   1,544.52x = 2,117,960.27
5. Step 5: Solve for x
   x = 2,117,960.27/1,544.52
6. Step 6: Final answer
   x = 1,371.27