Finding the Fourth Proportional to 2,528.31, 3,488.97 and 1,409.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.31 : 3,488.97 = 1,409.25 : x
2. Step 2: Convert to fraction form
   2,528.31/3,488.97 = 1,409.25/x
3. Step 3: Cross multiply
   2,528.31x = 3,488.97 × 1,409.25
4. Step 4: Simplify right side
   2,528.31x = 4,916,829.72
5. Step 5: Solve for x
   x = 4,916,829.72/2,528.31
6. Step 6: Final answer
   x = 1,944.71