Finding the Fourth Proportional to 2,320.32, 3,481.60 and 1,087.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.32 : 3,481.60 = 1,087.53 : x
2. Step 2: Convert to fraction form
   2,320.32/3,481.60 = 1,087.53/x
3. Step 3: Cross multiply
   2,320.32x = 3,481.60 × 1,087.53
4. Step 4: Simplify right side
   2,320.32x = 3,786,339.01
5. Step 5: Solve for x
   x = 3,786,339.01/2,320.32
6. Step 6: Final answer
   x = 1,631.82