Finding the Fourth Proportional to 2,325.57, 3,210.69 and 1,530.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,325.57 : 3,210.69 = 1,530.15 : x
2. Step 2: Convert to fraction form
   2,325.57/3,210.69 = 1,530.15/x
3. Step 3: Cross multiply
   2,325.57x = 3,210.69 × 1,530.15
4. Step 4: Simplify right side
   2,325.57x = 4,912,837.30
5. Step 5: Solve for x
   x = 4,912,837.30/2,325.57
6. Step 6: Final answer
   x = 2,112.53