Finding the Fourth Proportional to 1,469.50, 2,198.68 and 906.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,469.50 : 2,198.68 = 906.76 : x
2. Step 2: Convert to fraction form
   1,469.50/2,198.68 = 906.76/x
3. Step 3: Cross multiply
   1,469.50x = 2,198.68 × 906.76
4. Step 4: Simplify right side
   1,469.50x = 1,993,667.31
5. Step 5: Solve for x
   x = 1,993,667.31/1,469.50
6. Step 6: Final answer
   x = 1,356.70