Finding the Fourth Proportional to 1,960.37, 2,705.06 and 1,213.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,960.37 : 2,705.06 = 1,213.52 : x
2. Step 2: Convert to fraction form
   1,960.37/2,705.06 = 1,213.52/x
3. Step 3: Cross multiply
   1,960.37x = 2,705.06 × 1,213.52
4. Step 4: Simplify right side
   1,960.37x = 3,282,644.41
5. Step 5: Solve for x
   x = 3,282,644.41/1,960.37
6. Step 6: Final answer
   x = 1,674.50