Finding the Fourth Proportional to 3,770.30, 5,202.86 and 2,091.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,770.30 : 5,202.86 = 2,091.74 : x
2. Step 2: Convert to fraction form
   3,770.30/5,202.86 = 2,091.74/x
3. Step 3: Cross multiply
   3,770.30x = 5,202.86 × 2,091.74
4. Step 4: Simplify right side
   3,770.30x = 10,882,993.90
5. Step 5: Solve for x
   x = 10,882,993.90/3,770.30
6. Step 6: Final answer
   x = 2,886.50