Finding the Fourth Proportional to 2,471.68, 3,410.59 and 1,587.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,471.68 : 3,410.59 = 1,587.56 : x
2. Step 2: Convert to fraction form
   2,471.68/3,410.59 = 1,587.56/x
3. Step 3: Cross multiply
   2,471.68x = 3,410.59 × 1,587.56
4. Step 4: Simplify right side
   2,471.68x = 5,414,516.26
5. Step 5: Solve for x
   x = 5,414,516.26/2,471.68
6. Step 6: Final answer
   x = 2,190.62