Finding the Fourth Proportional to 2,128.50, 3,174.23 and 1,892.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.50 : 3,174.23 = 1,892.52 : x
2. Step 2: Convert to fraction form
   2,128.50/3,174.23 = 1,892.52/x
3. Step 3: Cross multiply
   2,128.50x = 3,174.23 × 1,892.52
4. Step 4: Simplify right side
   2,128.50x = 6,007,298.49
5. Step 5: Solve for x
   x = 6,007,298.49/2,128.50
6. Step 6: Final answer
   x = 2,822.32