Finding the Fourth Proportional to 2,709.12, 3,738.60 and 1,530.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.12 : 3,738.60 = 1,530.30 : x
2. Step 2: Convert to fraction form
   2,709.12/3,738.60 = 1,530.30/x
3. Step 3: Cross multiply
   2,709.12x = 3,738.60 × 1,530.30
4. Step 4: Simplify right side
   2,709.12x = 5,721,179.58
5. Step 5: Solve for x
   x = 5,721,179.58/2,709.12
6. Step 6: Final answer
   x = 2,111.82