Finding the Fourth Proportional to 1,563.48, 2,157.50 and 934.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,563.48 : 2,157.50 = 934.03 : x
2. Step 2: Convert to fraction form
   1,563.48/2,157.50 = 934.03/x
3. Step 3: Cross multiply
   1,563.48x = 2,157.50 × 934.03
4. Step 4: Simplify right side
   1,563.48x = 2,015,170.82
5. Step 5: Solve for x
   x = 2,015,170.82/1,563.48
6. Step 6: Final answer
   x = 1,288.90