Finding the Fourth Proportional to 2,371.31, 3,270.56 and 1,520.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,371.31 : 3,270.56 = 1,520.65 : x
2. Step 2: Convert to fraction form
   2,371.31/3,270.56 = 1,520.65/x
3. Step 3: Cross multiply
   2,371.31x = 3,270.56 × 1,520.65
4. Step 4: Simplify right side
   2,371.31x = 4,973,360.71
5. Step 5: Solve for x
   x = 4,973,360.71/2,371.31
6. Step 6: Final answer
   x = 2,097.30