Finding the Fourth Proportional to 1,935.50, 2,672.37 and 1,190.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,935.50 : 2,672.37 = 1,190.45 : x
2. Step 2: Convert to fraction form
   1,935.50/2,672.37 = 1,190.45/x
3. Step 3: Cross multiply
   1,935.50x = 2,672.37 × 1,190.45
4. Step 4: Simplify right side
   1,935.50x = 3,181,329.55
5. Step 5: Solve for x
   x = 3,181,329.55/1,935.50
6. Step 6: Final answer
   x = 1,643.68