Finding the Fourth Proportional to 1,068.55, 1,601.72 and 410.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068.55 : 1,601.72 = 410.27 : x
2. Step 2: Convert to fraction form
   1,068.55/1,601.72 = 410.27/x
3. Step 3: Cross multiply
   1,068.55x = 1,601.72 × 410.27
4. Step 4: Simplify right side
   1,068.55x = 657,137.66
5. Step 5: Solve for x
   x = 657,137.66/1,068.55
6. Step 6: Final answer
   x = 614.98