Finding the Fourth Proportional to 1,677.16, 2,310.56 and 1,440.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.16 : 2,310.56 = 1,440.32 : x
2. Step 2: Convert to fraction form
   1,677.16/2,310.56 = 1,440.32/x
3. Step 3: Cross multiply
   1,677.16x = 2,310.56 × 1,440.32
4. Step 4: Simplify right side
   1,677.16x = 3,327,945.78
5. Step 5: Solve for x
   x = 3,327,945.78/1,677.16
6. Step 6: Final answer
   x = 1,984.27