Finding the Fourth Proportional to 1,921.50, 2,640.17 and 1,527.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.50 : 2,640.17 = 1,527.84 : x
2. Step 2: Convert to fraction form
   1,921.50/2,640.17 = 1,527.84/x
3. Step 3: Cross multiply
   1,921.50x = 2,640.17 × 1,527.84
4. Step 4: Simplify right side
   1,921.50x = 4,033,749.69
5. Step 5: Solve for x
   x = 4,033,749.69/1,921.50
6. Step 6: Final answer
   x = 2,099.27