Finding the Fourth Proportional to 3,128.50, 4,683.42 and 1,892.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.50 : 4,683.42 = 1,892.17 : x
2. Step 2: Convert to fraction form
   3,128.50/4,683.42 = 1,892.17/x
3. Step 3: Cross multiply
   3,128.50x = 4,683.42 × 1,892.17
4. Step 4: Simplify right side
   3,128.50x = 8,861,826.82
5. Step 5: Solve for x
   x = 8,861,826.82/3,128.50
6. Step 6: Final answer
   x = 2,832.61