Finding the Fourth Proportional to 1,563.56, 2,158.17 and 934.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,563.56 : 2,158.17 = 934.52 : x
2. Step 2: Convert to fraction form
   1,563.56/2,158.17 = 934.52/x
3. Step 3: Cross multiply
   1,563.56x = 2,158.17 × 934.52
4. Step 4: Simplify right side
   1,563.56x = 2,016,853.03
5. Step 5: Solve for x
   x = 2,016,853.03/1,563.56
6. Step 6: Final answer
   x = 1,289.91