Finding the Fourth Proportional to 1,479.95, 2,042.43 and 850.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.95 : 2,042.43 = 850.69 : x
2. Step 2: Convert to fraction form
   1,479.95/2,042.43 = 850.69/x
3. Step 3: Cross multiply
   1,479.95x = 2,042.43 × 850.69
4. Step 4: Simplify right side
   1,479.95x = 1,737,464.56
5. Step 5: Solve for x
   x = 1,737,464.56/1,479.95
6. Step 6: Final answer
   x = 1,174.00