Finding the Fourth Proportional to 1,454.42, 2,003.52 and 1,380.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,454.42 : 2,003.52 = 1,380.32 : x
2. Step 2: Convert to fraction form
   1,454.42/2,003.52 = 1,380.32/x
3. Step 3: Cross multiply
   1,454.42x = 2,003.52 × 1,380.32
4. Step 4: Simplify right side
   1,454.42x = 2,765,498.73
5. Step 5: Solve for x
   x = 2,765,498.73/1,454.42
6. Step 6: Final answer
   x = 1,901.44