Finding the Fourth Proportional to 1,899.32, 2,619.48 and 1,456.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899.32 : 2,619.48 = 1,456.40 : x
2. Step 2: Convert to fraction form
   1,899.32/2,619.48 = 1,456.40/x
3. Step 3: Cross multiply
   1,899.32x = 2,619.48 × 1,456.40
4. Step 4: Simplify right side
   1,899.32x = 3,815,010.67
5. Step 5: Solve for x
   x = 3,815,010.67/1,899.32
6. Step 6: Final answer
   x = 2,008.62