Finding the Fourth Proportional to 1,559.16, 2,153.40 and 1,034.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,559.16 : 2,153.40 = 1,034.28 : x
2. Step 2: Convert to fraction form
   1,559.16/2,153.40 = 1,034.28/x
3. Step 3: Cross multiply
   1,559.16x = 2,153.40 × 1,034.28
4. Step 4: Simplify right side
   1,559.16x = 2,227,218.55
5. Step 5: Solve for x
   x = 2,227,218.55/1,559.16
6. Step 6: Final answer
   x = 1,428.47