Finding the Fourth Proportional to 1,513.36, 2,088.83 and 850.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.36 : 2,088.83 = 850.42 : x
2. Step 2: Convert to fraction form
   1,513.36/2,088.83 = 850.42/x
3. Step 3: Cross multiply
   1,513.36x = 2,088.83 × 850.42
4. Step 4: Simplify right side
   1,513.36x = 1,776,378.56
5. Step 5: Solve for x
   x = 1,776,378.56/1,513.36
6. Step 6: Final answer
   x = 1,173.80