Finding the Fourth Proportional to 3,846.15, 5,765.72 and 1,870.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,846.15 : 5,765.72 = 1,870.70 : x
2. Step 2: Convert to fraction form
   3,846.15/5,765.72 = 1,870.70/x
3. Step 3: Cross multiply
   3,846.15x = 5,765.72 × 1,870.70
4. Step 4: Simplify right side
   3,846.15x = 10,785,894.22
5. Step 5: Solve for x
   x = 10,785,894.22/3,846.15
6. Step 6: Final answer
   x = 2,804.34