Finding the Fourth Proportional to 2,515.59, 3,472.20 and 1,631.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515.59 : 3,472.20 = 1,631.34 : x
2. Step 2: Convert to fraction form
   2,515.59/3,472.20 = 1,631.34/x
3. Step 3: Cross multiply
   2,515.59x = 3,472.20 × 1,631.34
4. Step 4: Simplify right side
   2,515.59x = 5,664,338.75
5. Step 5: Solve for x
   x = 5,664,338.75/2,515.59
6. Step 6: Final answer
   x = 2,251.69