Finding the Fourth Proportional to 1,081.55, 1,624.16 and 706.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.55 : 1,624.16 = 706.92 : x
2. Step 2: Convert to fraction form
   1,081.55/1,624.16 = 706.92/x
3. Step 3: Cross multiply
   1,081.55x = 1,624.16 × 706.92
4. Step 4: Simplify right side
   1,081.55x = 1,148,147.65
5. Step 5: Solve for x
   x = 1,148,147.65/1,081.55
6. Step 6: Final answer
   x = 1,061.58