Finding the Fourth Proportional to 3,401.10, 5,106.33 and 1,758.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.10 : 5,106.33 = 1,758.78 : x
2. Step 2: Convert to fraction form
   3,401.10/5,106.33 = 1,758.78/x
3. Step 3: Cross multiply
   3,401.10x = 5,106.33 × 1,758.78
4. Step 4: Simplify right side
   3,401.10x = 8,980,911.08
5. Step 5: Solve for x
   x = 8,980,911.08/3,401.10
6. Step 6: Final answer
   x = 2,640.59