Finding the Fourth Proportional to 1,458.45, 2,012.18 and 934.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.45 : 2,012.18 = 934.79 : x
2. Step 2: Convert to fraction form
   1,458.45/2,012.18 = 934.79/x
3. Step 3: Cross multiply
   1,458.45x = 2,012.18 × 934.79
4. Step 4: Simplify right side
   1,458.45x = 1,880,951.01
5. Step 5: Solve for x
   x = 1,880,951.01/1,458.45
6. Step 6: Final answer
   x = 1,289.69