Finding the Fourth Proportional to 2,971.34, 4,097.72 and 2,551.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971.34 : 4,097.72 = 2,551.55 : x
2. Step 2: Convert to fraction form
   2,971.34/4,097.72 = 2,551.55/x
3. Step 3: Cross multiply
   2,971.34x = 4,097.72 × 2,551.55
4. Step 4: Simplify right side
   2,971.34x = 10,455,504.22
5. Step 5: Solve for x
   x = 10,455,504.22/2,971.34
6. Step 6: Final answer
   x = 3,518.79