Finding the Fourth Proportional to 2,527.92, 3,784.32 and 1,428.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,527.92 : 3,784.32 = 1,428.84 : x
2. Step 2: Convert to fraction form
   2,527.92/3,784.32 = 1,428.84/x
3. Step 3: Cross multiply
   2,527.92x = 3,784.32 × 1,428.84
4. Step 4: Simplify right side
   2,527.92x = 5,407,187.79
5. Step 5: Solve for x
   x = 5,407,187.79/2,527.92
6. Step 6: Final answer
   x = 2,138.99