Finding the Fourth Proportional to 1,440.54, 2,162.61 and 976.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440.54 : 2,162.61 = 976.41 : x
2. Step 2: Convert to fraction form
   1,440.54/2,162.61 = 976.41/x
3. Step 3: Cross multiply
   1,440.54x = 2,162.61 × 976.41
4. Step 4: Simplify right side
   1,440.54x = 2,111,594.03
5. Step 5: Solve for x
   x = 2,111,594.03/1,440.54
6. Step 6: Final answer
   x = 1,465.84