Finding the Fourth Proportional to 2,133.16, 3,196.78 and 1,612.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133.16 : 3,196.78 = 1,612.74 : x
2. Step 2: Convert to fraction form
   2,133.16/3,196.78 = 1,612.74/x
3. Step 3: Cross multiply
   2,133.16x = 3,196.78 × 1,612.74
4. Step 4: Simplify right side
   2,133.16x = 5,155,574.98
5. Step 5: Solve for x
   x = 5,155,574.98/2,133.16
6. Step 6: Final answer
   x = 2,416.87