Finding the Fourth Proportional to 3,758.50, 5,186.60 and 2,079.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.50 : 5,186.60 = 2,079.98 : x
2. Step 2: Convert to fraction form
   3,758.50/5,186.60 = 2,079.98/x
3. Step 3: Cross multiply
   3,758.50x = 5,186.60 × 2,079.98
4. Step 4: Simplify right side
   3,758.50x = 10,788,022.50
5. Step 5: Solve for x
   x = 10,788,022.50/3,758.50
6. Step 6: Final answer
   x = 2,870.30