Finding the Fourth Proportional to 1,513.83, 2,089.06 and 850.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.83 : 2,089.06 = 850.67 : x
2. Step 2: Convert to fraction form
   1,513.83/2,089.06 = 850.67/x
3. Step 3: Cross multiply
   1,513.83x = 2,089.06 × 850.67
4. Step 4: Simplify right side
   1,513.83x = 1,777,103.77
5. Step 5: Solve for x
   x = 1,777,103.77/1,513.83
6. Step 6: Final answer
   x = 1,173.91