Finding the Fourth Proportional to 2,472.31, 3,410.67 and 1,587.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.31 : 3,410.67 = 1,587.79 : x
2. Step 2: Convert to fraction form
   2,472.31/3,410.67 = 1,587.79/x
3. Step 3: Cross multiply
   2,472.31x = 3,410.67 × 1,587.79
4. Step 4: Simplify right side
   2,472.31x = 5,415,427.72
5. Step 5: Solve for x
   x = 5,415,427.72/2,472.31
6. Step 6: Final answer
   x = 2,190.43