Finding the Fourth Proportional to 2,269.92, 3,132.24 and 1,385.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.92 : 3,132.24 = 1,385.94 : x
2. Step 2: Convert to fraction form
   2,269.92/3,132.24 = 1,385.94/x
3. Step 3: Cross multiply
   2,269.92x = 3,132.24 × 1,385.94
4. Step 4: Simplify right side
   2,269.92x = 4,341,096.71
5. Step 5: Solve for x
   x = 4,341,096.71/2,269.92
6. Step 6: Final answer
   x = 1,912.44