Finding the Fourth Proportional to 1,574.43, 2,347.89 and 1,380.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.43 : 2,347.89 = 1,380.33 : x
2. Step 2: Convert to fraction form
   1,574.43/2,347.89 = 1,380.33/x
3. Step 3: Cross multiply
   1,574.43x = 2,347.89 × 1,380.33
4. Step 4: Simplify right side
   1,574.43x = 3,240,872.32
5. Step 5: Solve for x
   x = 3,240,872.32/1,574.43
6. Step 6: Final answer
   x = 2,058.44