Finding the Fourth Proportional to 1,059.72, 1,462.39 and 587.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.72 : 1,462.39 = 587.58 : x
2. Step 2: Convert to fraction form
   1,059.72/1,462.39 = 587.58/x
3. Step 3: Cross multiply
   1,059.72x = 1,462.39 × 587.58
4. Step 4: Simplify right side
   1,059.72x = 859,271.12
5. Step 5: Solve for x
   x = 859,271.12/1,059.72
6. Step 6: Final answer
   x = 810.85