Finding the Fourth Proportional to 1,059.87, 1,462.59 and 587.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.87 : 1,462.59 = 587.79 : x
2. Step 2: Convert to fraction form
   1,059.87/1,462.59 = 587.79/x
3. Step 3: Cross multiply
   1,059.87x = 1,462.59 × 587.79
4. Step 4: Simplify right side
   1,059.87x = 859,695.78
5. Step 5: Solve for x
   x = 859,695.78/1,059.87
6. Step 6: Final answer
   x = 811.13