Finding the Fourth Proportional to 2,471.48, 3,410.78 and 1,409.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.48 : 3,410.78 = 1,409.30 : x
2. Step 2: Convert to fraction form
   2,471.48/3,410.78 = 1,409.30/x
3. Step 3: Cross multiply
   2,471.48x = 3,410.78 × 1,409.30
4. Step 4: Simplify right side
   2,471.48x = 4,806,812.25
5. Step 5: Solve for x
   x = 4,806,812.25/2,471.48
6. Step 6: Final answer
   x = 1,944.91