Finding the Fourth Proportional to 1,564.76, 2,159.52 and 1,040.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564.76 : 2,159.52 = 1,040.96 : x
2. Step 2: Convert to fraction form
   1,564.76/2,159.52 = 1,040.96/x
3. Step 3: Cross multiply
   1,564.76x = 2,159.52 × 1,040.96
4. Step 4: Simplify right side
   1,564.76x = 2,247,973.94
5. Step 5: Solve for x
   x = 2,247,973.94/1,564.76
6. Step 6: Final answer
   x = 1,436.63