Finding the Fourth Proportional to 2,559.47, 3,532.23 and 1,440.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.47 : 3,532.23 = 1,440.51 : x
2. Step 2: Convert to fraction form
   2,559.47/3,532.23 = 1,440.51/x
3. Step 3: Cross multiply
   2,559.47x = 3,532.23 × 1,440.51
4. Step 4: Simplify right side
   2,559.47x = 5,088,212.64
5. Step 5: Solve for x
   x = 5,088,212.64/2,559.47
6. Step 6: Final answer
   x = 1,988.00