Finding the Fourth Proportional to 1,562.56, 2,157.60 and 1,066.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,562.56 : 2,157.60 = 1,066.24 : x
2. Step 2: Convert to fraction form
   1,562.56/2,157.60 = 1,066.24/x
3. Step 3: Cross multiply
   1,562.56x = 2,157.60 × 1,066.24
4. Step 4: Simplify right side
   1,562.56x = 2,300,519.42
5. Step 5: Solve for x
   x = 2,300,519.42/1,562.56
6. Step 6: Final answer
   x = 1,472.28