Finding the Fourth Proportional to 2,763.69, 4,146.12 and 914.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,763.69 : 4,146.12 = 914.70 : x
2. Step 2: Convert to fraction form
   2,763.69/4,146.12 = 914.70/x
3. Step 3: Cross multiply
   2,763.69x = 4,146.12 × 914.70
4. Step 4: Simplify right side
   2,763.69x = 3,792,471.51
5. Step 5: Solve for x
   x = 3,792,471.51/2,763.69
6. Step 6: Final answer
   x = 1,372.25