Finding the Fourth Proportional to 3,870.83, 5,805.56 and 1,761.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.83 : 5,805.56 = 1,761.96 : x
2. Step 2: Convert to fraction form
   3,870.83/5,805.56 = 1,761.96/x
3. Step 3: Cross multiply
   3,870.83x = 5,805.56 × 1,761.96
4. Step 4: Simplify right side
   3,870.83x = 10,229,190.67
5. Step 5: Solve for x
   x = 10,229,190.67/3,870.83
6. Step 6: Final answer
   x = 2,642.63