Finding the Fourth Proportional to 1,060.56, 1,590.72 and 475.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.56 : 1,590.72 = 475.59 : x
2. Step 2: Convert to fraction form
   1,060.56/1,590.72 = 475.59/x
3. Step 3: Cross multiply
   1,060.56x = 1,590.72 × 475.59
4. Step 4: Simplify right side
   1,060.56x = 756,530.52
5. Step 5: Solve for x
   x = 756,530.52/1,060.56
6. Step 6: Final answer
   x = 713.33