Finding the Fourth Proportional to 2,320.62, 3,478.59 and 1,455.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,320.62 : 3,478.59 = 1,455.54 : x
2. Step 2: Convert to fraction form
   2,320.62/3,478.59 = 1,455.54/x
3. Step 3: Cross multiply
   2,320.62x = 3,478.59 × 1,455.54
4. Step 4: Simplify right side
   2,320.62x = 5,063,226.89
5. Step 5: Solve for x
   x = 5,063,226.89/2,320.62
6. Step 6: Final answer
   x = 2,181.84