Finding the Fourth Proportional to 3,870.45, 5,341.33 and 2,191.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.45 : 5,341.33 = 2,191.82 : x
2. Step 2: Convert to fraction form
   3,870.45/5,341.33 = 2,191.82/x
3. Step 3: Cross multiply
   3,870.45x = 5,341.33 × 2,191.82
4. Step 4: Simplify right side
   3,870.45x = 11,707,209.95
5. Step 5: Solve for x
   x = 11,707,209.95/3,870.45
6. Step 6: Final answer
   x = 3,024.77