Finding the Fourth Proportional to 1,134.77, 1,701.82 and 404.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134.77 : 1,701.82 = 404.55 : x
2. Step 2: Convert to fraction form
   1,134.77/1,701.82 = 404.55/x
3. Step 3: Cross multiply
   1,134.77x = 1,701.82 × 404.55
4. Step 4: Simplify right side
   1,134.77x = 688,470.27
5. Step 5: Solve for x
   x = 688,470.27/1,134.77
6. Step 6: Final answer
   x = 606.71