Finding the Fourth Proportional to 1,344.53, 2,020.89 and 1,315.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.53 : 2,020.89 = 1,315.82 : x
2. Step 2: Convert to fraction form
   1,344.53/2,020.89 = 1,315.82/x
3. Step 3: Cross multiply
   1,344.53x = 2,020.89 × 1,315.82
4. Step 4: Simplify right side
   1,344.53x = 2,659,127.48
5. Step 5: Solve for x
   x = 2,659,127.48/1,344.53
6. Step 6: Final answer
   x = 1,977.74