Finding the Fourth Proportional to 1,444.05, 1,991.70 and 1,245.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.05 : 1,991.70 = 1,245.23 : x
2. Step 2: Convert to fraction form
   1,444.05/1,991.70 = 1,245.23/x
3. Step 3: Cross multiply
   1,444.05x = 1,991.70 × 1,245.23
4. Step 4: Simplify right side
   1,444.05x = 2,480,124.59
5. Step 5: Solve for x
   x = 2,480,124.59/1,444.05
6. Step 6: Final answer
   x = 1,717.48