Finding the Fourth Proportional to 1,059.62, 1,586.69 and 731.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.62 : 1,586.69 = 731.57 : x
2. Step 2: Convert to fraction form
   1,059.62/1,586.69 = 731.57/x
3. Step 3: Cross multiply
   1,059.62x = 1,586.69 × 731.57
4. Step 4: Simplify right side
   1,059.62x = 1,160,774.80
5. Step 5: Solve for x
   x = 1,160,774.80/1,059.62
6. Step 6: Final answer
   x = 1,095.46