Finding the Fourth Proportional to 2,528.15, 3,488.72 and 1,409.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,528.15 : 3,488.72 = 1,409.18 : x
2. Step 2: Convert to fraction form
   2,528.15/3,488.72 = 1,409.18/x
3. Step 3: Cross multiply
   2,528.15x = 3,488.72 × 1,409.18
4. Step 4: Simplify right side
   2,528.15x = 4,916,209.96
5. Step 5: Solve for x
   x = 4,916,209.96/2,528.15
6. Step 6: Final answer
   x = 1,944.59