Finding the Fourth Proportional to 1,134.59, 1,702.58 and 404.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,134.59 : 1,702.58 = 404.10 : x
2. Step 2: Convert to fraction form
   1,134.59/1,702.58 = 404.10/x
3. Step 3: Cross multiply
   1,134.59x = 1,702.58 × 404.10
4. Step 4: Simplify right side
   1,134.59x = 688,010.56
5. Step 5: Solve for x
   x = 688,010.56/1,134.59
6. Step 6: Final answer
   x = 606.40