Finding the Fourth Proportional to 1,605.79, 2,404.34 and 834.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605.79 : 2,404.34 = 834.67 : x
2. Step 2: Convert to fraction form
   1,605.79/2,404.34 = 834.67/x
3. Step 3: Cross multiply
   1,605.79x = 2,404.34 × 834.67
4. Step 4: Simplify right side
   1,605.79x = 2,006,830.47
5. Step 5: Solve for x
   x = 2,006,830.47/1,605.79
6. Step 6: Final answer
   x = 1,249.75