Finding the Fourth Proportional to 2,134.16, 3,196.38 and 1,485.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.16 : 3,196.38 = 1,485.40 : x
2. Step 2: Convert to fraction form
   2,134.16/3,196.38 = 1,485.40/x
3. Step 3: Cross multiply
   2,134.16x = 3,196.38 × 1,485.40
4. Step 4: Simplify right side
   2,134.16x = 4,747,902.85
5. Step 5: Solve for x
   x = 4,747,902.85/2,134.16
6. Step 6: Final answer
   x = 2,224.72