Finding the Fourth Proportional to 1,940.42, 2,912.31 and 1,016.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.42 : 2,912.31 = 1,016.62 : x
2. Step 2: Convert to fraction form
   1,940.42/2,912.31 = 1,016.62/x
3. Step 3: Cross multiply
   1,940.42x = 2,912.31 × 1,016.62
4. Step 4: Simplify right side
   1,940.42x = 2,960,692.95
5. Step 5: Solve for x
   x = 2,960,692.95/1,940.42
6. Step 6: Final answer
   x = 1,525.80