Finding the Fourth Proportional to 1,395.34, 2,092.86 and 573.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.34 : 2,092.86 = 573.55 : x
2. Step 2: Convert to fraction form
   1,395.34/2,092.86 = 573.55/x
3. Step 3: Cross multiply
   1,395.34x = 2,092.86 × 573.55
4. Step 4: Simplify right side
   1,395.34x = 1,200,359.85
5. Step 5: Solve for x
   x = 1,200,359.85/1,395.34
6. Step 6: Final answer
   x = 860.26