Finding the Fourth Proportional to 1,444.41, 1,993.55 and 815.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.41 : 1,993.55 = 815.13 : x
2. Step 2: Convert to fraction form
   1,444.41/1,993.55 = 815.13/x
3. Step 3: Cross multiply
   1,444.41x = 1,993.55 × 815.13
4. Step 4: Simplify right side
   1,444.41x = 1,625,002.41
5. Step 5: Solve for x
   x = 1,625,002.41/1,444.41
6. Step 6: Final answer
   x = 1,125.03