Finding the Fourth Proportional to 3,882.18, 5,821.86 and 1,690.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,882.18 : 5,821.86 = 1,690.38 : x
2. Step 2: Convert to fraction form
   3,882.18/5,821.86 = 1,690.38/x
3. Step 3: Cross multiply
   3,882.18x = 5,821.86 × 1,690.38
4. Step 4: Simplify right side
   3,882.18x = 9,841,155.71
5. Step 5: Solve for x
   x = 9,841,155.71/3,882.18
6. Step 6: Final answer
   x = 2,534.96