Finding the Fourth Proportional to 2,100, 3,150.24 and 1,074.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100 : 3,150.24 = 1,074.24 : x
2. Step 2: Convert to fraction form
   2,100/3,150.24 = 1,074.24/x
3. Step 3: Cross multiply
   2,100x = 3,150.24 × 1,074.24
4. Step 4: Simplify right side
   2,100x = 3,384,113.82
5. Step 5: Solve for x
   x = 3,384,113.82/2,100
6. Step 6: Final answer
   x = 1,611.48