Finding the Fourth Proportional to 2,575.46, 3,554.34 and 2,155.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.46 : 3,554.34 = 2,155.06 : x
2. Step 2: Convert to fraction form
   2,575.46/3,554.34 = 2,155.06/x
3. Step 3: Cross multiply
   2,575.46x = 3,554.34 × 2,155.06
4. Step 4: Simplify right side
   2,575.46x = 7,659,815.96
5. Step 5: Solve for x
   x = 7,659,815.96/2,575.46
6. Step 6: Final answer
   x = 2,974.15