Finding the Fourth Proportional to 3,608.92, 5,412.90 and 1,012.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.92 : 5,412.90 = 1,012.06 : x
2. Step 2: Convert to fraction form
   3,608.92/5,412.90 = 1,012.06/x
3. Step 3: Cross multiply
   3,608.92x = 5,412.90 × 1,012.06
4. Step 4: Simplify right side
   3,608.92x = 5,478,179.57
5. Step 5: Solve for x
   x = 5,478,179.57/3,608.92
6. Step 6: Final answer
   x = 1,517.96