Finding the Fourth Proportional to 1,060.94, 1,591.83 and 411.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,060.94 : 1,591.83 = 411.86 : x
2. Step 2: Convert to fraction form
   1,060.94/1,591.83 = 411.86/x
3. Step 3: Cross multiply
   1,060.94x = 1,591.83 × 411.86
4. Step 4: Simplify right side
   1,060.94x = 655,611.10
5. Step 5: Solve for x
   x = 655,611.10/1,060.94
6. Step 6: Final answer
   x = 617.95