Finding the Fourth Proportional to 1,059.61, 1,462.35 and 587.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.61 : 1,462.35 = 587.55 : x
2. Step 2: Convert to fraction form
   1,059.61/1,462.35 = 587.55/x
3. Step 3: Cross multiply
   1,059.61x = 1,462.35 × 587.55
4. Step 4: Simplify right side
   1,059.61x = 859,200.80
5. Step 5: Solve for x
   x = 859,200.80/1,059.61
6. Step 6: Final answer
   x = 810.87