Finding the Fourth Proportional to 1,443.42, 2,149.80 and 1,353.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.42 : 2,149.80 = 1,353.51 : x
2. Step 2: Convert to fraction form
   1,443.42/2,149.80 = 1,353.51/x
3. Step 3: Cross multiply
   1,443.42x = 2,149.80 × 1,353.51
4. Step 4: Simplify right side
   1,443.42x = 2,909,775.80
5. Step 5: Solve for x
   x = 2,909,775.80/1,443.42
6. Step 6: Final answer
   x = 2,015.89